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LCOV - code coverage report
Current view: top level - ext/gmp - gmp.c (source / functions) Hit Total Coverage
Test: PHP Code Coverage Lines: 726 727 99.9 %
Date: 2016-09-27 Functions: 77 77 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :    +----------------------------------------------------------------------+
       3             :    | PHP Version 7                                                        |
       4             :    +----------------------------------------------------------------------+
       5             :    | Copyright (c) 1997-2016 The PHP Group                                |
       6             :    +----------------------------------------------------------------------+
       7             :    | This source file is subject to version 3.01 of the PHP license,      |
       8             :    | that is bundled with this package in the file LICENSE, and is        |
       9             :    | available through the world-wide-web at the following url:           |
      10             :    | http://www.php.net/license/3_01.txt                                  |
      11             :    | If you did not receive a copy of the PHP license and are unable to   |
      12             :    | obtain it through the world-wide-web, please send a note to          |
      13             :    | license@php.net so we can mail you a copy immediately.               |
      14             :    +----------------------------------------------------------------------+
      15             :    | Author: Stanislav Malyshev <stas@php.net>                            |
      16             :    +----------------------------------------------------------------------+
      17             :  */
      18             : 
      19             : #ifdef HAVE_CONFIG_H
      20             : #include "config.h"
      21             : #endif
      22             : 
      23             : #include "php.h"
      24             : #include "php_ini.h"
      25             : #include "php_gmp.h"
      26             : #include "ext/standard/info.h"
      27             : #include "ext/standard/php_var.h"
      28             : #include "zend_smart_str_public.h"
      29             : #include "zend_exceptions.h"
      30             : 
      31             : #if HAVE_GMP
      32             : 
      33             : #include <gmp.h>
      34             : 
      35             : /* Needed for gmp_random() */
      36             : #include "ext/standard/php_rand.h"
      37             : #include "ext/standard/php_lcg.h"
      38             : #define GMP_ABS(x) ((x) >= 0 ? (x) : -(x))
      39             : 
      40             : /* {{{ arginfo */
      41             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_init, 0, 0, 1)
      42             :         ZEND_ARG_INFO(0, number)
      43             :         ZEND_ARG_INFO(0, base)
      44             : ZEND_END_ARG_INFO()
      45             : 
      46             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_import, 0, 0, 1)
      47             :         ZEND_ARG_INFO(0, data)
      48             :         ZEND_ARG_INFO(0, word_size)
      49             :         ZEND_ARG_INFO(0, options)
      50             : ZEND_END_ARG_INFO()
      51             : 
      52             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_export, 0, 0, 1)
      53             :         ZEND_ARG_INFO(0, gmpnumber)
      54             :         ZEND_ARG_INFO(0, word_size)
      55             :         ZEND_ARG_INFO(0, options)
      56             : ZEND_END_ARG_INFO()
      57             : 
      58             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_intval, 0, 0, 1)
      59             :         ZEND_ARG_INFO(0, gmpnumber)
      60             : ZEND_END_ARG_INFO()
      61             : 
      62             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_strval, 0, 0, 1)
      63             :         ZEND_ARG_INFO(0, gmpnumber)
      64             :         ZEND_ARG_INFO(0, base)
      65             : ZEND_END_ARG_INFO()
      66             : 
      67             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_unary, 0, 0, 1)
      68             :         ZEND_ARG_INFO(0, a)
      69             : ZEND_END_ARG_INFO()
      70             : 
      71             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_binary, 0, 0, 2)
      72             :         ZEND_ARG_INFO(0, a)
      73             :         ZEND_ARG_INFO(0, b)
      74             : ZEND_END_ARG_INFO()
      75             : 
      76             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_div, 0, 0, 2)
      77             :         ZEND_ARG_INFO(0, a)
      78             :         ZEND_ARG_INFO(0, b)
      79             :         ZEND_ARG_INFO(0, round)
      80             : ZEND_END_ARG_INFO()
      81             : 
      82             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_pow, 0, 0, 2)
      83             :         ZEND_ARG_INFO(0, base)
      84             :         ZEND_ARG_INFO(0, exp)
      85             : ZEND_END_ARG_INFO()
      86             : 
      87             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_powm, 0, 0, 3)
      88             :         ZEND_ARG_INFO(0, base)
      89             :         ZEND_ARG_INFO(0, exp)
      90             :         ZEND_ARG_INFO(0, mod)
      91             : ZEND_END_ARG_INFO()
      92             : 
      93             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_root, 0, 0, 2)
      94             :         ZEND_ARG_INFO(0, a)
      95             :         ZEND_ARG_INFO(0, nth)
      96             : ZEND_END_ARG_INFO()
      97             : 
      98             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_prob_prime, 0, 0, 1)
      99             :         ZEND_ARG_INFO(0, a)
     100             :         ZEND_ARG_INFO(0, reps)
     101             : ZEND_END_ARG_INFO()
     102             : 
     103             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_random, 0, 0, 0)
     104             :         ZEND_ARG_INFO(0, limiter)
     105             : ZEND_END_ARG_INFO()
     106             : 
     107             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_random_seed, 0, 0, 1)
     108             :         ZEND_ARG_INFO(0, seed)
     109             : ZEND_END_ARG_INFO()
     110             : 
     111             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_random_bits, 0, 0, 1)
     112             :         ZEND_ARG_INFO(0, bits)
     113             : ZEND_END_ARG_INFO()
     114             : 
     115             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_random_range, 0, 0, 2)
     116             :         ZEND_ARG_INFO(0, min)
     117             :         ZEND_ARG_INFO(0, max)
     118             : ZEND_END_ARG_INFO()
     119             : 
     120             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_setbit, 0, 0, 2)
     121             :         ZEND_ARG_INFO(0, a)
     122             :         ZEND_ARG_INFO(0, index)
     123             :         ZEND_ARG_INFO(0, set_clear)
     124             : ZEND_END_ARG_INFO()
     125             : 
     126             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_bit, 0, 0, 2)
     127             :         ZEND_ARG_INFO(0, a)
     128             :         ZEND_ARG_INFO(0, index)
     129             : ZEND_END_ARG_INFO()
     130             : 
     131             : ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_scan, 0, 0, 2)
     132             :         ZEND_ARG_INFO(0, a)
     133             :         ZEND_ARG_INFO(0, start)
     134             : ZEND_END_ARG_INFO()
     135             : 
     136             : /* }}} */
     137             : 
     138             : ZEND_DECLARE_MODULE_GLOBALS(gmp)
     139             : static ZEND_GINIT_FUNCTION(gmp);
     140             : 
     141             : /* {{{ gmp_functions[]
     142             :  */
     143             : const zend_function_entry gmp_functions[] = {
     144             :         ZEND_FE(gmp_init,               arginfo_gmp_init)
     145             :         ZEND_FE(gmp_import,             arginfo_gmp_import)
     146             :         ZEND_FE(gmp_export,             arginfo_gmp_export)
     147             :         ZEND_FE(gmp_intval,             arginfo_gmp_intval)
     148             :         ZEND_FE(gmp_strval,             arginfo_gmp_strval)
     149             :         ZEND_FE(gmp_add,                arginfo_gmp_binary)
     150             :         ZEND_FE(gmp_sub,                arginfo_gmp_binary)
     151             :         ZEND_FE(gmp_mul,                arginfo_gmp_binary)
     152             :         ZEND_FE(gmp_div_qr,             arginfo_gmp_div)
     153             :         ZEND_FE(gmp_div_q,              arginfo_gmp_div)
     154             :         ZEND_FE(gmp_div_r,              arginfo_gmp_div)
     155             :         ZEND_FALIAS(gmp_div, gmp_div_q, arginfo_gmp_div)
     156             :         ZEND_FE(gmp_mod,                arginfo_gmp_binary)
     157             :         ZEND_FE(gmp_divexact,   arginfo_gmp_binary)
     158             :         ZEND_FE(gmp_neg,                arginfo_gmp_unary)
     159             :         ZEND_FE(gmp_abs,                arginfo_gmp_unary)
     160             :         ZEND_FE(gmp_fact,               arginfo_gmp_unary)
     161             :         ZEND_FE(gmp_sqrt,               arginfo_gmp_unary)
     162             :         ZEND_FE(gmp_sqrtrem,    arginfo_gmp_unary)
     163             :         ZEND_FE(gmp_root,               arginfo_gmp_root)
     164             :         ZEND_FE(gmp_rootrem,    arginfo_gmp_root)
     165             :         ZEND_FE(gmp_pow,                arginfo_gmp_pow)
     166             :         ZEND_FE(gmp_powm,               arginfo_gmp_powm)
     167             :         ZEND_FE(gmp_perfect_square,     arginfo_gmp_unary)
     168             :         ZEND_FE(gmp_prob_prime, arginfo_gmp_prob_prime)
     169             :         ZEND_FE(gmp_gcd,                arginfo_gmp_binary)
     170             :         ZEND_FE(gmp_gcdext,             arginfo_gmp_binary)
     171             :         ZEND_FE(gmp_invert,             arginfo_gmp_binary)
     172             :         ZEND_FE(gmp_jacobi,             arginfo_gmp_binary)
     173             :         ZEND_FE(gmp_legendre,   arginfo_gmp_binary)
     174             :         ZEND_FE(gmp_cmp,                arginfo_gmp_binary)
     175             :         ZEND_FE(gmp_sign,               arginfo_gmp_unary)
     176             :         ZEND_FE(gmp_random,             arginfo_gmp_random)
     177             :         ZEND_FE(gmp_random_seed,        arginfo_gmp_random_seed)
     178             :         ZEND_FE(gmp_random_bits,  arginfo_gmp_random_bits)
     179             :         ZEND_FE(gmp_random_range, arginfo_gmp_random_range)
     180             :         ZEND_FE(gmp_and,                arginfo_gmp_binary)
     181             :         ZEND_FE(gmp_or,                 arginfo_gmp_binary)
     182             :         ZEND_FE(gmp_com,                arginfo_gmp_unary)
     183             :         ZEND_FE(gmp_xor,                arginfo_gmp_binary)
     184             :         ZEND_FE(gmp_setbit,             arginfo_gmp_setbit)
     185             :         ZEND_FE(gmp_clrbit,             arginfo_gmp_bit)
     186             :         ZEND_FE(gmp_testbit,    arginfo_gmp_bit)
     187             :         ZEND_FE(gmp_scan0,      arginfo_gmp_scan)
     188             :         ZEND_FE(gmp_scan1,      arginfo_gmp_scan)
     189             :         ZEND_FE(gmp_popcount,   arginfo_gmp_unary)
     190             :         ZEND_FE(gmp_hamdist,    arginfo_gmp_binary)
     191             :         ZEND_FE(gmp_nextprime,  arginfo_gmp_unary)
     192             :         PHP_FE_END
     193             : };
     194             : /* }}} */
     195             : 
     196             : /* {{{ gmp_module_entry
     197             :  */
     198             : zend_module_entry gmp_module_entry = {
     199             :         STANDARD_MODULE_HEADER,
     200             :         "gmp",
     201             :         gmp_functions,
     202             :         ZEND_MODULE_STARTUP_N(gmp),
     203             :         NULL,
     204             :         NULL,
     205             :         ZEND_MODULE_DEACTIVATE_N(gmp),
     206             :         ZEND_MODULE_INFO_N(gmp),
     207             :         PHP_GMP_VERSION,
     208             :         ZEND_MODULE_GLOBALS(gmp),
     209             :         ZEND_GINIT(gmp),
     210             :         NULL,
     211             :         NULL,
     212             :         STANDARD_MODULE_PROPERTIES_EX
     213             : };
     214             : /* }}} */
     215             : 
     216             : #ifdef COMPILE_DL_GMP
     217             : #ifdef ZTS
     218             : ZEND_TSRMLS_CACHE_DEFINE()
     219             : #endif
     220             : ZEND_GET_MODULE(gmp)
     221             : #endif
     222             : 
     223             : zend_class_entry *gmp_ce;
     224             : static zend_object_handlers gmp_object_handlers;
     225             : 
     226             : typedef struct _gmp_object {
     227             :         mpz_t num;
     228             :         zend_object std;
     229             : } gmp_object;
     230             : 
     231             : typedef struct _gmp_temp {
     232             :         mpz_t num;
     233             :         zend_bool is_used;
     234             : } gmp_temp_t;
     235             : 
     236             : #define GMP_ROUND_ZERO      0
     237             : #define GMP_ROUND_PLUSINF   1
     238             : #define GMP_ROUND_MINUSINF  2
     239             : 
     240             : #define GMP_MSW_FIRST     (1 << 0)
     241             : #define GMP_LSW_FIRST     (1 << 1)
     242             : #define GMP_LITTLE_ENDIAN (1 << 2)
     243             : #define GMP_BIG_ENDIAN    (1 << 3)
     244             : #define GMP_NATIVE_ENDIAN (1 << 4)
     245             : 
     246             : #define GMP_MAX_BASE 62
     247             : 
     248             : #define GMP_51_OR_NEWER \
     249             :         ((__GNU_MP_VERSION >= 6) || (__GNU_MP_VERSION >= 5 && __GNU_MP_VERSION_MINOR >= 1))
     250             : 
     251             : #define IS_GMP(zval) \
     252             :         (Z_TYPE_P(zval) == IS_OBJECT && instanceof_function(Z_OBJCE_P(zval), gmp_ce))
     253             : 
     254             : #define GET_GMP_OBJECT_FROM_OBJ(obj) \
     255             :         ((gmp_object *) ((char *) (obj) - XtOffsetOf(gmp_object, std)))
     256             : #define GET_GMP_OBJECT_FROM_ZVAL(zv) \
     257             :         GET_GMP_OBJECT_FROM_OBJ(Z_OBJ_P(zv))
     258             : 
     259             : #define GET_GMP_FROM_ZVAL(zval) \
     260             :         GET_GMP_OBJECT_FROM_OBJ(Z_OBJ_P(zval))->num
     261             : 
     262             : /* The FETCH_GMP_ZVAL_* family of macros is used to fetch a gmp number
     263             :  * (mpz_ptr) from a zval. If the zval is not a GMP instance, then we
     264             :  * try to convert the value to a temporary gmp number using convert_to_gmp.
     265             :  * This temporary number is stored in the temp argument, which is of type
     266             :  * gmp_temp_t. This temporary value needs to be freed lateron using the
     267             :  * FREE_GMP_TEMP macro.
     268             :  *
     269             :  * If the conversion to a gmp number fails, the macros return false.
     270             :  * The _DEP / _DEP_DEP variants additionally free the temporary values
     271             :  * passed in the last / last two arguments.
     272             :  *
     273             :  * If one zval can sometimes be fetched as a long you have to set the
     274             :  * is_used member of the corresponding gmp_temp_t value to 0, otherwise
     275             :  * the FREE_GMP_TEMP and *_DEP macros will not work properly.
     276             :  *
     277             :  * The three FETCH_GMP_ZVAL_* macros below are mostly copy & paste code
     278             :  * as I couldn't find a way to combine them.
     279             :  */
     280             : 
     281             : #define FREE_GMP_TEMP(temp)  \
     282             :         if (temp.is_used) {      \
     283             :                 mpz_clear(temp.num); \
     284             :         }
     285             : 
     286             : #define FETCH_GMP_ZVAL_DEP_DEP(gmpnumber, zval, temp, dep1, dep2) \
     287             : if (IS_GMP(zval)) {                                               \
     288             :         gmpnumber = GET_GMP_FROM_ZVAL(zval);                          \
     289             :         temp.is_used = 0;                                             \
     290             : } else {                                                          \
     291             :         mpz_init(temp.num);                                           \
     292             :         if (convert_to_gmp(temp.num, zval, 0) == FAILURE) { \
     293             :                 mpz_clear(temp.num);                                      \
     294             :                 FREE_GMP_TEMP(dep1);                                      \
     295             :                 FREE_GMP_TEMP(dep2);                                      \
     296             :                 RETURN_FALSE;                                             \
     297             :         }                                                             \
     298             :         temp.is_used = 1;                                             \
     299             :         gmpnumber = temp.num;                                         \
     300             : }
     301             : 
     302             : #define FETCH_GMP_ZVAL_DEP(gmpnumber, zval, temp, dep)            \
     303             : if (IS_GMP(zval)) {                                               \
     304             :         gmpnumber = GET_GMP_FROM_ZVAL(zval);                          \
     305             :         temp.is_used = 0;                                             \
     306             : } else {                                                          \
     307             :         mpz_init(temp.num);                                           \
     308             :         if (convert_to_gmp(temp.num, zval, 0) == FAILURE) { \
     309             :                 mpz_clear(temp.num);                                      \
     310             :                 FREE_GMP_TEMP(dep);                                       \
     311             :                 RETURN_FALSE;                                             \
     312             :         }                                                             \
     313             :         temp.is_used = 1;                                             \
     314             :         gmpnumber = temp.num;                                         \
     315             : }
     316             : 
     317             : #define FETCH_GMP_ZVAL(gmpnumber, zval, temp)                     \
     318             : if (IS_GMP(zval)) {                                               \
     319             :         gmpnumber = GET_GMP_FROM_ZVAL(zval);                          \
     320             :         temp.is_used = 0;                                             \
     321             : } else {                                                          \
     322             :         mpz_init(temp.num);                                           \
     323             :         if (convert_to_gmp(temp.num, zval, 0) == FAILURE) { \
     324             :                 mpz_clear(temp.num);                                      \
     325             :                 RETURN_FALSE;                                             \
     326             :         }                                                             \
     327             :         temp.is_used = 1;                                             \
     328             :         gmpnumber = temp.num;                                         \
     329             : }
     330             : 
     331             : #define INIT_GMP_RETVAL(gmpnumber) \
     332             :         gmp_create(return_value, &gmpnumber)
     333             : 
     334             : static void gmp_strval(zval *result, mpz_t gmpnum, int base);
     335             : static int convert_to_gmp(mpz_t gmpnumber, zval *val, zend_long base);
     336             : static void gmp_cmp(zval *return_value, zval *a_arg, zval *b_arg);
     337             : 
     338             : /*
     339             :  * The gmp_*_op functions provide an implementation for several common types
     340             :  * of GMP functions. The gmp_zval_(unary|binary)_*_op functions have to be manually
     341             :  * passed zvals to work on, whereas the gmp_(unary|binary)_*_op macros already
     342             :  * include parameter parsing.
     343             :  */
     344             : typedef void (*gmp_unary_op_t)(mpz_ptr, mpz_srcptr);
     345             : typedef int (*gmp_unary_opl_t)(mpz_srcptr);
     346             : 
     347             : typedef void (*gmp_unary_ui_op_t)(mpz_ptr, gmp_ulong);
     348             : 
     349             : typedef void (*gmp_binary_op_t)(mpz_ptr, mpz_srcptr, mpz_srcptr);
     350             : typedef int (*gmp_binary_opl_t)(mpz_srcptr, mpz_srcptr);
     351             : 
     352             : typedef void (*gmp_binary_ui_op_t)(mpz_ptr, mpz_srcptr, gmp_ulong);
     353             : typedef void (*gmp_binary_op2_t)(mpz_ptr, mpz_ptr, mpz_srcptr, mpz_srcptr);
     354             : typedef void (*gmp_binary_ui_op2_t)(mpz_ptr, mpz_ptr, mpz_srcptr, gmp_ulong);
     355             : 
     356             : static inline void gmp_zval_binary_ui_op(zval *return_value, zval *a_arg, zval *b_arg, gmp_binary_op_t gmp_op, gmp_binary_ui_op_t gmp_ui_op, int check_b_zero);
     357             : static inline void gmp_zval_binary_ui_op2(zval *return_value, zval *a_arg, zval *b_arg, gmp_binary_op2_t gmp_op, gmp_binary_ui_op2_t gmp_ui_op, int check_b_zero);
     358             : static inline void gmp_zval_unary_op(zval *return_value, zval *a_arg, gmp_unary_op_t gmp_op);
     359             : static inline void gmp_zval_unary_ui_op(zval *return_value, zval *a_arg, gmp_unary_ui_op_t gmp_op);
     360             : 
     361             : /* Binary operations */
     362             : #define gmp_binary_ui_op(op, uop) _gmp_binary_ui_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op, uop, 0)
     363             : #define gmp_binary_op(op)         _gmp_binary_ui_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op, NULL, 0)
     364             : #define gmp_binary_opl(op) _gmp_binary_opl(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
     365             : #define gmp_binary_ui_op_no_zero(op, uop) \
     366             :         _gmp_binary_ui_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op, uop, 1)
     367             : 
     368             : /* Unary operations */
     369             : #define gmp_unary_op(op)         _gmp_unary_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
     370             : #define gmp_unary_opl(op)         _gmp_unary_opl(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
     371             : #define gmp_unary_ui_op(op)      _gmp_unary_ui_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
     372             : 
     373       28606 : static void gmp_free_object_storage(zend_object *obj) /* {{{ */
     374             : {
     375       28606 :         gmp_object *intern = GET_GMP_OBJECT_FROM_OBJ(obj);
     376             : 
     377       28606 :         mpz_clear(intern->num);
     378       28606 :         zend_object_std_dtor(&intern->std);
     379       28606 : }
     380             : /* }}} */
     381             : 
     382       28606 : static inline zend_object *gmp_create_object_ex(zend_class_entry *ce, mpz_ptr *gmpnum_target) /* {{{ */
     383             : {
     384       28606 :         gmp_object *intern = emalloc(sizeof(gmp_object) + zend_object_properties_size(ce));
     385             : 
     386       28606 :         zend_object_std_init(&intern->std, ce);
     387       28606 :         object_properties_init(&intern->std, ce);
     388             : 
     389       28606 :         mpz_init(intern->num);
     390       28606 :         *gmpnum_target = intern->num;
     391       28606 :         intern->std.handlers = &gmp_object_handlers;
     392             : 
     393       28606 :         return &intern->std;
     394             : }
     395             : /* }}} */
     396             : 
     397           1 : static zend_object *gmp_create_object(zend_class_entry *ce) /* {{{ */
     398             : {
     399             :         mpz_ptr gmpnum_dummy;
     400           1 :         return gmp_create_object_ex(ce, &gmpnum_dummy);
     401             : }
     402             : /* }}} */
     403             : 
     404       28605 : static inline void gmp_create(zval *target, mpz_ptr *gmpnum_target) /* {{{ */
     405             : {
     406       28605 :         ZVAL_OBJ(target, gmp_create_object_ex(gmp_ce, gmpnum_target));
     407       28605 : }
     408             : /* }}} */
     409             : 
     410          23 : static int gmp_cast_object(zval *readobj, zval *writeobj, int type) /* {{{ */
     411             : {
     412             :         mpz_ptr gmpnum;
     413          23 :         switch (type) {
     414             :         case IS_STRING:
     415          15 :                 gmpnum = GET_GMP_FROM_ZVAL(readobj);
     416          15 :                 gmp_strval(writeobj, gmpnum, 10);
     417          15 :                 return SUCCESS;
     418             :         case IS_LONG:
     419           6 :                 gmpnum = GET_GMP_FROM_ZVAL(readobj);
     420           6 :                 ZVAL_LONG(writeobj, mpz_get_si(gmpnum));
     421           6 :                 return SUCCESS;
     422             :         case IS_DOUBLE:
     423           1 :                 gmpnum = GET_GMP_FROM_ZVAL(readobj);
     424           1 :                 ZVAL_DOUBLE(writeobj, mpz_get_d(gmpnum));
     425           1 :                 return SUCCESS;
     426             :         default:
     427           1 :                 return FAILURE;
     428             :         }
     429             : }
     430             : /* }}} */
     431             : 
     432         118 : static HashTable *gmp_get_debug_info(zval *obj, int *is_temp) /* {{{ */
     433             : {
     434         118 :         HashTable *ht, *props = zend_std_get_properties(obj);
     435         118 :         mpz_ptr gmpnum = GET_GMP_FROM_ZVAL(obj);
     436             :         zval zv;
     437             : 
     438         118 :         *is_temp = 1;
     439         118 :         ht = zend_array_dup(props);
     440             : 
     441         118 :         gmp_strval(&zv, gmpnum, 10);
     442         118 :         zend_hash_str_update(ht, "num", sizeof("num")-1, &zv);
     443             : 
     444         118 :         return ht;
     445             : }
     446             : /* }}} */
     447             : 
     448           1 : static zend_object *gmp_clone_obj(zval *obj) /* {{{ */
     449             : {
     450           1 :         gmp_object *old_object = GET_GMP_OBJECT_FROM_ZVAL(obj);
     451           1 :         gmp_object *new_object = GET_GMP_OBJECT_FROM_OBJ(gmp_create_object(Z_OBJCE_P(obj)));
     452             : 
     453           1 :         zend_objects_clone_members( &new_object->std, &old_object->std);
     454             : 
     455           1 :         mpz_set(new_object->num, old_object->num);
     456             : 
     457           1 :         return &new_object->std;
     458             : }
     459             : /* }}} */
     460             : 
     461        1011 : static void shift_operator_helper(gmp_binary_ui_op_t op, zval *return_value, zval *op1, zval *op2) {
     462        1011 :         zend_long shift = zval_get_long(op2);
     463             : 
     464        1011 :         if (shift < 0) {
     465           2 :                 php_error_docref(NULL, E_WARNING, "Shift cannot be negative");
     466           2 :                 RETVAL_FALSE;
     467             :         } else {
     468             :                 mpz_ptr gmpnum_op, gmpnum_result;
     469             :                 gmp_temp_t temp;
     470             : 
     471        1009 :                 FETCH_GMP_ZVAL(gmpnum_op, op1, temp);
     472        1009 :                 INIT_GMP_RETVAL(gmpnum_result);
     473        1009 :                 op(gmpnum_result, gmpnum_op, (gmp_ulong) shift);
     474        1009 :                 FREE_GMP_TEMP(temp);
     475             :         }
     476             : }
     477             : 
     478             : #define DO_BINARY_UI_OP_EX(op, uop, check_b_zero)       \
     479             :         gmp_zval_binary_ui_op(                              \
     480             :                 result, op1, op2, op, (gmp_binary_ui_op_t) uop, \
     481             :                 check_b_zero                          \
     482             :         );                                                  \
     483             :         return SUCCESS;
     484             : 
     485             : #define DO_BINARY_UI_OP(op) DO_BINARY_UI_OP_EX(op, op ## _ui, 0)
     486             : #define DO_BINARY_OP(op) DO_BINARY_UI_OP_EX(op, NULL, 0)
     487             : 
     488             : #define DO_UNARY_OP(op) \
     489             :         gmp_zval_unary_op(result, op1, op); \
     490             :         return SUCCESS;
     491             : 
     492        1061 : static int gmp_do_operation_ex(zend_uchar opcode, zval *result, zval *op1, zval *op2) /* {{{ */
     493             : {
     494        1061 :         switch (opcode) {
     495             :         case ZEND_ADD:
     496           6 :                 DO_BINARY_UI_OP(mpz_add);
     497             :         case ZEND_SUB:
     498           6 :                 DO_BINARY_UI_OP(mpz_sub);
     499             :         case ZEND_MUL:
     500           7 :                 DO_BINARY_UI_OP(mpz_mul);
     501             :         case ZEND_POW:
     502           3 :                 shift_operator_helper(mpz_pow_ui, result, op1, op2);
     503           3 :                 return SUCCESS;
     504             :         case ZEND_DIV:
     505           4 :                 DO_BINARY_UI_OP_EX(mpz_tdiv_q, mpz_tdiv_q_ui, 1);
     506             :         case ZEND_MOD:
     507           4 :                 DO_BINARY_UI_OP_EX(mpz_mod, mpz_mod_ui, 1);
     508             :         case ZEND_SL:
     509        1005 :                 shift_operator_helper(mpz_mul_2exp, result, op1, op2);
     510        1005 :                 return SUCCESS;
     511             :         case ZEND_SR:
     512           3 :                 shift_operator_helper(mpz_fdiv_q_2exp, result, op1, op2);
     513           3 :                 return SUCCESS;
     514             :         case ZEND_BW_OR:
     515           3 :                 DO_BINARY_OP(mpz_ior);
     516             :         case ZEND_BW_AND:
     517           3 :                 DO_BINARY_OP(mpz_and);
     518             :         case ZEND_BW_XOR:
     519           3 :                 DO_BINARY_OP(mpz_xor);
     520             :         case ZEND_BW_NOT:
     521           1 :                 DO_UNARY_OP(mpz_com);
     522             : 
     523             :         default:
     524          13 :                 return FAILURE;
     525             :         }
     526             : }
     527             : /* }}} */
     528             : 
     529        1061 : static int gmp_do_operation(zend_uchar opcode, zval *result, zval *op1, zval *op2) /* {{{ */
     530             : {
     531             :         zval op1_copy;
     532             :         int retval;
     533             : 
     534        1061 :         if (result == op1) {
     535        1008 :                 ZVAL_COPY_VALUE(&op1_copy, op1);
     536        1008 :                 op1 = &op1_copy;
     537             :         }
     538             : 
     539        1061 :         retval = gmp_do_operation_ex(opcode, result, op1, op2);
     540             : 
     541        1061 :         if (retval == SUCCESS && op1 == &op1_copy) {
     542             :                 zval_dtor(op1);
     543             :         }
     544             : 
     545        1061 :         return retval;
     546             : }
     547             : /* }}} */
     548             : 
     549       50022 : static int gmp_compare(zval *result, zval *op1, zval *op2) /* {{{ */
     550             : {
     551       50022 :         gmp_cmp(result, op1, op2);
     552       50022 :         if (Z_TYPE_P(result) == IS_FALSE) {
     553           1 :                 ZVAL_LONG(result, 1);
     554             :         }
     555       50022 :         return SUCCESS;
     556             : }
     557             : /* }}} */
     558             : 
     559           2 : static int gmp_serialize(zval *object, unsigned char **buffer, size_t *buf_len, zend_serialize_data *data) /* {{{ */
     560             : {
     561           2 :         mpz_ptr gmpnum = GET_GMP_FROM_ZVAL(object);
     562           2 :         smart_str buf = {0};
     563             :         zval zv;
     564           2 :         php_serialize_data_t serialize_data = (php_serialize_data_t) data;
     565             : 
     566           2 :         PHP_VAR_SERIALIZE_INIT(serialize_data);
     567             : 
     568           2 :         gmp_strval(&zv, gmpnum, 10);
     569           2 :         php_var_serialize(&buf, &zv, &serialize_data);
     570             :         zval_dtor(&zv);
     571             : 
     572           2 :         ZVAL_ARR(&zv, zend_std_get_properties(object));
     573           2 :         php_var_serialize(&buf, &zv, &serialize_data);
     574             : 
     575           2 :         PHP_VAR_SERIALIZE_DESTROY(serialize_data);
     576           2 :         *buffer = (unsigned char *) estrndup(ZSTR_VAL(buf.s), ZSTR_LEN(buf.s));
     577           2 :         *buf_len = ZSTR_LEN(buf.s);
     578           2 :         zend_string_release(buf.s);
     579             : 
     580           2 :         return SUCCESS;
     581             : }
     582             : /* }}} */
     583             : 
     584           6 : static int gmp_unserialize(zval *object, zend_class_entry *ce, const unsigned char *buf, size_t buf_len, zend_unserialize_data *data) /* {{{ */
     585             : {
     586             :         mpz_ptr gmpnum;
     587             :         const unsigned char *p, *max;
     588             :         zval *zv;
     589           6 :         int retval = FAILURE;
     590           6 :         php_unserialize_data_t unserialize_data = (php_unserialize_data_t) data;
     591             :         zval object_copy;
     592             : 
     593           6 :         PHP_VAR_UNSERIALIZE_INIT(unserialize_data);
     594           6 :         gmp_create(object, &gmpnum);
     595             : 
     596             :         /* The "object" variable may be modified during the execution of this unserialize handler
     597             :          * (it may turn into a reference). Keep the original object around for futher operations. */
     598           6 :         ZVAL_COPY_VALUE(&object_copy, object);
     599             : 
     600           6 :         p = buf;
     601           6 :         max = buf + buf_len;
     602             : 
     603           6 :         zv = var_tmp_var(&unserialize_data);
     604          16 :         if (!php_var_unserialize(zv, &p, max, &unserialize_data)
     605             :                 || Z_TYPE_P(zv) != IS_STRING
     606           5 :                 || convert_to_gmp(gmpnum, zv, 10) == FAILURE
     607             :         ) {
     608           1 :                 zend_throw_exception(NULL, "Could not unserialize number", 0);
     609           1 :                 goto exit;
     610             :         }
     611             : 
     612           5 :         zv = var_tmp_var(&unserialize_data);
     613           9 :         if (!php_var_unserialize(zv, &p, max, &unserialize_data)
     614             :                 || Z_TYPE_P(zv) != IS_ARRAY
     615             :         ) {
     616           1 :                 zend_throw_exception(NULL, "Could not unserialize properties", 0);
     617           1 :                 goto exit;
     618             :         }
     619             : 
     620           4 :         if (zend_hash_num_elements(Z_ARRVAL_P(zv)) != 0) {
     621           3 :                 zend_hash_copy(
     622           3 :                         zend_std_get_properties(&object_copy), Z_ARRVAL_P(zv),
     623             :                         (copy_ctor_func_t) zval_add_ref
     624             :                 );
     625             :         }
     626             : 
     627           4 :         retval = SUCCESS;
     628             : exit:
     629           6 :         PHP_VAR_UNSERIALIZE_DESTROY(unserialize_data);
     630           6 :         return retval;
     631             : }
     632             : /* }}} */
     633             : 
     634             : /* {{{ ZEND_GINIT_FUNCTION
     635             :  */
     636       23950 : static ZEND_GINIT_FUNCTION(gmp)
     637             : {
     638             : #if defined(COMPILE_DL_GMP) && defined(ZTS)
     639             :         ZEND_TSRMLS_CACHE_UPDATE();
     640             : #endif
     641       23950 :         gmp_globals->rand_initialized = 0;
     642       23950 : }
     643             : /* }}} */
     644             : 
     645             : /* {{{ ZEND_MINIT_FUNCTION
     646             :  */
     647       23950 : ZEND_MINIT_FUNCTION(gmp)
     648             : {
     649             :         zend_class_entry tmp_ce;
     650       23950 :         INIT_CLASS_ENTRY(tmp_ce, "GMP", NULL);
     651       23950 :         gmp_ce = zend_register_internal_class(&tmp_ce);
     652       23950 :         gmp_ce->create_object = gmp_create_object;
     653       23950 :         gmp_ce->serialize = gmp_serialize;
     654       23950 :         gmp_ce->unserialize = gmp_unserialize;
     655             : 
     656       23950 :         memcpy(&gmp_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
     657       23950 :         gmp_object_handlers.offset = XtOffsetOf(gmp_object, std);
     658       23950 :         gmp_object_handlers.free_obj = gmp_free_object_storage;
     659       23950 :         gmp_object_handlers.cast_object = gmp_cast_object;
     660       23950 :         gmp_object_handlers.get_debug_info = gmp_get_debug_info;
     661       23950 :         gmp_object_handlers.clone_obj = gmp_clone_obj;
     662       23950 :         gmp_object_handlers.do_operation = gmp_do_operation;
     663       23950 :         gmp_object_handlers.compare = gmp_compare;
     664             : 
     665       23950 :         REGISTER_LONG_CONSTANT("GMP_ROUND_ZERO", GMP_ROUND_ZERO, CONST_CS | CONST_PERSISTENT);
     666       23950 :         REGISTER_LONG_CONSTANT("GMP_ROUND_PLUSINF", GMP_ROUND_PLUSINF, CONST_CS | CONST_PERSISTENT);
     667       23950 :         REGISTER_LONG_CONSTANT("GMP_ROUND_MINUSINF", GMP_ROUND_MINUSINF, CONST_CS | CONST_PERSISTENT);
     668             : #ifdef mpir_version
     669             :         REGISTER_STRING_CONSTANT("GMP_MPIR_VERSION", (char *)mpir_version, CONST_CS | CONST_PERSISTENT);
     670             : #endif
     671       23950 :         REGISTER_STRING_CONSTANT("GMP_VERSION", (char *)gmp_version, CONST_CS | CONST_PERSISTENT);
     672             : 
     673       23950 :         REGISTER_LONG_CONSTANT("GMP_MSW_FIRST", GMP_MSW_FIRST, CONST_CS | CONST_PERSISTENT);
     674       23950 :         REGISTER_LONG_CONSTANT("GMP_LSW_FIRST", GMP_LSW_FIRST, CONST_CS | CONST_PERSISTENT);
     675       23950 :         REGISTER_LONG_CONSTANT("GMP_LITTLE_ENDIAN", GMP_LITTLE_ENDIAN, CONST_CS | CONST_PERSISTENT);
     676       23950 :         REGISTER_LONG_CONSTANT("GMP_BIG_ENDIAN", GMP_BIG_ENDIAN, CONST_CS | CONST_PERSISTENT);
     677       23950 :         REGISTER_LONG_CONSTANT("GMP_NATIVE_ENDIAN", GMP_NATIVE_ENDIAN, CONST_CS | CONST_PERSISTENT);
     678             : 
     679       23950 :         return SUCCESS;
     680             : }
     681             : /* }}} */
     682             : 
     683             : /* {{{ ZEND_RSHUTDOWN_FUNCTION
     684             :  */
     685       23925 : ZEND_MODULE_DEACTIVATE_D(gmp)
     686             : {
     687       23925 :         if (GMPG(rand_initialized)) {
     688           5 :                 gmp_randclear(GMPG(rand_state));
     689           5 :                 GMPG(rand_initialized) = 0;
     690             :         }
     691             : 
     692       23925 :         return SUCCESS;
     693             : }
     694             : /* }}} */
     695             : 
     696             : /* {{{ ZEND_MINFO_FUNCTION
     697             :  */
     698         143 : ZEND_MODULE_INFO_D(gmp)
     699             : {
     700         143 :         php_info_print_table_start();
     701         143 :         php_info_print_table_row(2, "gmp support", "enabled");
     702             : #ifdef mpir_version
     703             :         php_info_print_table_row(2, "MPIR version", mpir_version);
     704             : #else
     705         143 :         php_info_print_table_row(2, "GMP version", gmp_version);
     706             : #endif
     707         143 :         php_info_print_table_end();
     708         143 : }
     709             : /* }}} */
     710             : 
     711             : 
     712             : /* {{{ convert_to_gmp
     713             :  * Convert zval to be gmp number */
     714       52762 : static int convert_to_gmp(mpz_t gmpnumber, zval *val, zend_long base)
     715             : {
     716       52762 :         switch (Z_TYPE_P(val)) {
     717             :         case IS_LONG:
     718             :         case IS_FALSE:
     719             :         case IS_TRUE: {
     720       52482 :                 mpz_set_si(gmpnumber, zval_get_long(val));
     721       52482 :                 return SUCCESS;
     722             :         }
     723             :         case IS_STRING: {
     724         221 :                 char *numstr = Z_STRVAL_P(val);
     725         221 :                 zend_bool skip_lead = 0;
     726             :                 int ret;
     727             : 
     728         221 :                 if (Z_STRLEN_P(val) > 2 && numstr[0] == '0') {
     729          15 :                         if ((base == 0 || base == 16) && (numstr[1] == 'x' || numstr[1] == 'X')) {
     730           3 :                                 base = 16;
     731           3 :                                 skip_lead = 1;
     732           9 :                         } else if ((base == 0 || base == 2) && (numstr[1] == 'b' || numstr[1] == 'B')) {
     733           2 :                                 base = 2;
     734           2 :                                 skip_lead = 1;
     735             :                         }
     736             :                 }
     737             : 
     738         221 :                 ret = mpz_set_str(gmpnumber, (skip_lead ? &numstr[2] : numstr), (int) base);
     739         221 :                 if (-1 == ret) {
     740          20 :                         php_error_docref(NULL, E_WARNING,
     741             :                                 "Unable to convert variable to GMP - string is not an integer");
     742          20 :                         return FAILURE;
     743             :                 }
     744             : 
     745         201 :                 return SUCCESS;
     746             :         }
     747             :         default:
     748          59 :                 php_error_docref(NULL, E_WARNING,
     749             :                         "Unable to convert variable to GMP - wrong type");
     750          59 :                 return FAILURE;
     751             :         }
     752             : }
     753             : /* }}} */
     754             : 
     755         501 : static void gmp_strval(zval *result, mpz_t gmpnum, int base) /* {{{ */
     756             : {
     757             :         size_t num_len;
     758             :         zend_string *str;
     759             : 
     760         501 :         num_len = mpz_sizeinbase(gmpnum, abs(base));
     761         501 :         if (mpz_sgn(gmpnum) < 0) {
     762          58 :                 num_len++;
     763             :         }
     764             : 
     765         501 :         str = zend_string_alloc(num_len, 0);
     766         501 :         mpz_get_str(ZSTR_VAL(str), base, gmpnum);
     767             : 
     768             :         /*
     769             :          * From GMP documentation for mpz_sizeinbase():
     770             :          * The returned value will be exact or 1 too big.  If base is a power of
     771             :          * 2, the returned value will always be exact.
     772             :          *
     773             :          * So let's check to see if we already have a \0 byte...
     774             :          */
     775             : 
     776         501 :         if (ZSTR_VAL(str)[ZSTR_LEN(str) - 1] == '\0') {
     777          64 :                 ZSTR_LEN(str)--;
     778             :         } else {
     779         437 :                 ZSTR_VAL(str)[ZSTR_LEN(str)] = '\0';
     780             :         }
     781             : 
     782         501 :         ZVAL_NEW_STR(result, str);
     783         501 : }
     784             : /* }}} */
     785             : 
     786       50031 : static void gmp_cmp(zval *return_value, zval *a_arg, zval *b_arg) /* {{{ */
     787             : {
     788             :         mpz_ptr gmpnum_a, gmpnum_b;
     789             :         gmp_temp_t temp_a, temp_b;
     790       50031 :         zend_bool use_si = 0;
     791             :         zend_long res;
     792             : 
     793       50031 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
     794             : 
     795       50030 :         if (Z_TYPE_P(b_arg) == IS_LONG) {
     796       25012 :                 use_si = 1;
     797       25012 :                 temp_b.is_used = 0;
     798             :         } else {
     799       25018 :                 FETCH_GMP_ZVAL_DEP(gmpnum_b, b_arg, temp_b, temp_a);
     800             :         }
     801             : 
     802       50029 :         if (use_si) {
     803       25012 :                 res = mpz_cmp_si(gmpnum_a, Z_LVAL_P(b_arg));
     804             :         } else {
     805       25017 :                 res = mpz_cmp(gmpnum_a, gmpnum_b);
     806             :         }
     807             : 
     808       50029 :         FREE_GMP_TEMP(temp_a);
     809       50029 :         FREE_GMP_TEMP(temp_b);
     810             : 
     811       50029 :         RETURN_LONG(res);
     812             : }
     813             : /* }}} */
     814             : 
     815             : /* {{{ gmp_zval_binary_ui_op
     816             :    Execute GMP binary operation.
     817             : */
     818        1187 : static inline void gmp_zval_binary_ui_op(zval *return_value, zval *a_arg, zval *b_arg, gmp_binary_op_t gmp_op, gmp_binary_ui_op_t gmp_ui_op, int check_b_zero)
     819             : {
     820             :         mpz_ptr gmpnum_a, gmpnum_b, gmpnum_result;
     821        1187 :         int use_ui = 0;
     822             :         gmp_temp_t temp_a, temp_b;
     823             : 
     824        1187 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
     825             : 
     826        2359 :         if (gmp_ui_op && Z_TYPE_P(b_arg) == IS_LONG && Z_LVAL_P(b_arg) >= 0) {
     827          61 :                 use_ui = 1;
     828          61 :                 temp_b.is_used = 0;
     829             :         } else {
     830        1108 :                 FETCH_GMP_ZVAL_DEP(gmpnum_b, b_arg, temp_b, temp_a);
     831             :         }
     832             : 
     833        1165 :         if (check_b_zero) {
     834          56 :                 int b_is_zero = 0;
     835          56 :                 if (use_ui) {
     836          30 :                         b_is_zero = (Z_LVAL_P(b_arg) == 0);
     837             :                 } else {
     838          26 :                         b_is_zero = !mpz_cmp_ui(gmpnum_b, 0);
     839             :                 }
     840             : 
     841          56 :                 if (b_is_zero) {
     842           7 :                         php_error_docref(NULL, E_WARNING, "Zero operand not allowed");
     843           7 :                         FREE_GMP_TEMP(temp_a);
     844           7 :                         FREE_GMP_TEMP(temp_b);
     845           7 :                         RETURN_FALSE;
     846             :                 }
     847             :         }
     848             : 
     849        1158 :         INIT_GMP_RETVAL(gmpnum_result);
     850             : 
     851        1158 :         if (use_ui) {
     852          55 :                 gmp_ui_op(gmpnum_result, gmpnum_a, (gmp_ulong) Z_LVAL_P(b_arg));
     853             :         } else {
     854        1103 :                 gmp_op(gmpnum_result, gmpnum_a, gmpnum_b);
     855             :         }
     856             : 
     857        1158 :         FREE_GMP_TEMP(temp_a);
     858        1158 :         FREE_GMP_TEMP(temp_b);
     859             : }
     860             : /* }}} */
     861             : 
     862             : /* {{{ gmp_zval_binary_ui_op2
     863             :    Execute GMP binary operation which returns 2 values.
     864             : */
     865          14 : static inline void gmp_zval_binary_ui_op2(zval *return_value, zval *a_arg, zval *b_arg, gmp_binary_op2_t gmp_op, gmp_binary_ui_op2_t gmp_ui_op, int check_b_zero)
     866             : {
     867             :         mpz_ptr gmpnum_a, gmpnum_b, gmpnum_result1, gmpnum_result2;
     868          14 :         int use_ui = 0;
     869             :         gmp_temp_t temp_a, temp_b;
     870             :         zval result1, result2;
     871             : 
     872          14 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
     873             : 
     874          34 :         if (gmp_ui_op && Z_TYPE_P(b_arg) == IS_LONG && Z_LVAL_P(b_arg) >= 0) {
     875             :                 /* use _ui function */
     876          10 :                 use_ui = 1;
     877          10 :                 temp_b.is_used = 0;
     878             :         } else {
     879           2 :                 FETCH_GMP_ZVAL_DEP(gmpnum_b, b_arg, temp_b, temp_a);
     880             :         }
     881             : 
     882          12 :         if (check_b_zero) {
     883          12 :                 int b_is_zero = 0;
     884          12 :                 if (use_ui) {
     885          10 :                         b_is_zero = (Z_LVAL_P(b_arg) == 0);
     886             :                 } else {
     887           2 :                         b_is_zero = !mpz_cmp_ui(gmpnum_b, 0);
     888             :                 }
     889             : 
     890          12 :                 if (b_is_zero) {
     891           3 :                         php_error_docref(NULL, E_WARNING, "Zero operand not allowed");
     892           3 :                         FREE_GMP_TEMP(temp_a);
     893           3 :                         FREE_GMP_TEMP(temp_b);
     894           3 :                         RETURN_FALSE;
     895             :                 }
     896             :         }
     897             : 
     898           9 :         gmp_create(&result1, &gmpnum_result1);
     899           9 :         gmp_create(&result2, &gmpnum_result2);
     900             : 
     901           9 :         array_init(return_value);
     902           9 :         add_next_index_zval(return_value, &result1);
     903           9 :         add_next_index_zval(return_value, &result2);
     904             : 
     905           9 :         if (use_ui) {
     906           8 :                 gmp_ui_op(gmpnum_result1, gmpnum_result2, gmpnum_a, (gmp_ulong) Z_LVAL_P(b_arg));
     907             :         } else {
     908           1 :                 gmp_op(gmpnum_result1, gmpnum_result2, gmpnum_a, gmpnum_b);
     909             :         }
     910             : 
     911           9 :         FREE_GMP_TEMP(temp_a);
     912           9 :         FREE_GMP_TEMP(temp_b);
     913             : }
     914             : /* }}} */
     915             : 
     916             : /* {{{ _gmp_binary_ui_op
     917             :  */
     918        1144 : static inline void _gmp_binary_ui_op(INTERNAL_FUNCTION_PARAMETERS, gmp_binary_op_t gmp_op, gmp_binary_ui_op_t gmp_ui_op, int check_b_zero)
     919             : {
     920             :         zval *a_arg, *b_arg;
     921             : 
     922        1144 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz", &a_arg, &b_arg) == FAILURE){
     923          16 :                 return;
     924             :         }
     925             : 
     926        1128 :         gmp_zval_binary_ui_op(return_value, a_arg, b_arg, gmp_op, gmp_ui_op, check_b_zero);
     927             : }
     928             : /* }}} */
     929             : 
     930             : /* Unary operations */
     931             : 
     932             : /* {{{ gmp_zval_unary_op
     933             :  */
     934          38 : static inline void gmp_zval_unary_op(zval *return_value, zval *a_arg, gmp_unary_op_t gmp_op)
     935             : {
     936             :         mpz_ptr gmpnum_a, gmpnum_result;
     937             :         gmp_temp_t temp_a;
     938             : 
     939          38 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
     940             : 
     941          26 :         INIT_GMP_RETVAL(gmpnum_result);
     942          26 :         gmp_op(gmpnum_result, gmpnum_a);
     943             : 
     944          26 :         FREE_GMP_TEMP(temp_a);
     945             : }
     946             : /* }}} */
     947             : 
     948             : /* {{{ gmp_zval_unary_ui_op
     949             :  */
     950          11 : static inline void gmp_zval_unary_ui_op(zval *return_value, zval *a_arg, gmp_unary_ui_op_t gmp_op)
     951             : {
     952             :         mpz_ptr gmpnum_result;
     953             : 
     954          11 :         INIT_GMP_RETVAL(gmpnum_result);
     955          11 :         gmp_op(gmpnum_result, zval_get_long(a_arg));
     956          11 : }
     957             : /* }}} */
     958             : 
     959             : /* {{{ _gmp_unary_ui_op
     960             :    Execute GMP unary operation.
     961             : */
     962             : static inline void _gmp_unary_ui_op(INTERNAL_FUNCTION_PARAMETERS, gmp_unary_ui_op_t gmp_op)
     963             : {
     964             :         zval *a_arg;
     965             : 
     966             :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
     967             :                 return;
     968             :         }
     969             : 
     970             :         gmp_zval_unary_ui_op(return_value, a_arg, gmp_op);
     971             : }
     972             : /* }}} */
     973             : 
     974             : /* {{{ _gmp_unary_op
     975             :  */
     976          42 : static inline void _gmp_unary_op(INTERNAL_FUNCTION_PARAMETERS, gmp_unary_op_t gmp_op)
     977             : {
     978             :         zval *a_arg;
     979             : 
     980          42 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
     981           5 :                 return;
     982             :         }
     983             : 
     984          37 :         gmp_zval_unary_op(return_value, a_arg, gmp_op);
     985             : }
     986             : /* }}} */
     987             : 
     988             : /* {{{ _gmp_unary_opl
     989             :  */
     990           8 : static inline void _gmp_unary_opl(INTERNAL_FUNCTION_PARAMETERS, gmp_unary_opl_t gmp_op)
     991             : {
     992             :         zval *a_arg;
     993             :         mpz_ptr gmpnum_a;
     994             :         gmp_temp_t temp_a;
     995             : 
     996           8 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
     997           1 :                 return;
     998             :         }
     999             : 
    1000          14 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1001           6 :         RETVAL_LONG(gmp_op(gmpnum_a));
    1002           6 :         FREE_GMP_TEMP(temp_a);
    1003             : }
    1004             : /* }}} */
    1005             : 
    1006             : /* {{{ _gmp_binary_opl
    1007             :  */
    1008          58 : static inline void _gmp_binary_opl(INTERNAL_FUNCTION_PARAMETERS, gmp_binary_opl_t gmp_op)
    1009             : {
    1010             :         zval *a_arg, *b_arg;
    1011             :         mpz_ptr gmpnum_a, gmpnum_b;
    1012             :         gmp_temp_t temp_a, temp_b;
    1013             : 
    1014          58 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz", &a_arg, &b_arg) == FAILURE){
    1015           8 :                 return;
    1016             :         }
    1017             : 
    1018         100 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1019          88 :         FETCH_GMP_ZVAL_DEP(gmpnum_b, b_arg, temp_b, temp_a);
    1020             : 
    1021          41 :         RETVAL_LONG(gmp_op(gmpnum_a, gmpnum_b));
    1022             : 
    1023          41 :         FREE_GMP_TEMP(temp_a);
    1024          41 :         FREE_GMP_TEMP(temp_b);
    1025             : }
    1026             : /* }}} */
    1027             : 
    1028             : /* {{{ proto GMP gmp_init(mixed number [, int base])
    1029             :    Initializes GMP number */
    1030        1170 : ZEND_FUNCTION(gmp_init)
    1031             : {
    1032             :         zval *number_arg;
    1033             :         mpz_ptr gmpnumber;
    1034        1170 :         zend_long base = 0;
    1035             : 
    1036        1170 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|l", &number_arg, &base) == FAILURE) {
    1037           3 :                 return;
    1038             :         }
    1039             : 
    1040        1167 :         if (base && (base < 2 || base > GMP_MAX_BASE)) {
    1041           1 :                 php_error_docref(NULL, E_WARNING, "Bad base for conversion: " ZEND_LONG_FMT " (should be between 2 and %d)", base, GMP_MAX_BASE);
    1042           1 :                 RETURN_FALSE;
    1043             :         }
    1044             : 
    1045        1166 :         INIT_GMP_RETVAL(gmpnumber);
    1046        1166 :         if (convert_to_gmp(gmpnumber, number_arg, base) == FAILURE) {
    1047             :                 zval_dtor(return_value);
    1048           5 :                 RETURN_FALSE;
    1049             :         }
    1050             : }
    1051             : /* }}} */
    1052             : 
    1053          51 : int gmp_import_export_validate(zend_long size, zend_long options, int *order, int *endian)
    1054             : {
    1055          51 :         if (size < 1) {
    1056           4 :                 php_error_docref(NULL, E_WARNING,
    1057             :                         "Word size must be positive, " ZEND_LONG_FMT " given", size);
    1058           4 :                 return FAILURE;
    1059             :         }
    1060             : 
    1061          47 :         switch (options & (GMP_LSW_FIRST | GMP_MSW_FIRST)) {
    1062             :                 case GMP_LSW_FIRST:
    1063          18 :                         *order = -1;
    1064          18 :                         break;
    1065             :                 case GMP_MSW_FIRST:
    1066             :                 case 0: /* default */
    1067          27 :                         *order = 1;
    1068          27 :                         break;
    1069             :                 default:
    1070           2 :                         php_error_docref(NULL, E_WARNING,
    1071             :                                 "Invalid options: Conflicting word orders");
    1072           2 :                         return FAILURE;
    1073             :         }
    1074             : 
    1075          45 :         switch (options & (GMP_LITTLE_ENDIAN | GMP_BIG_ENDIAN | GMP_NATIVE_ENDIAN)) {
    1076             :                 case GMP_LITTLE_ENDIAN:
    1077          18 :                         *endian = -1;
    1078          18 :                         break;
    1079             :                 case GMP_BIG_ENDIAN:
    1080          22 :                         *endian = 1;
    1081          22 :                         break;
    1082             :                 case GMP_NATIVE_ENDIAN:
    1083             :                 case 0: /* default */
    1084           3 :                         *endian = 0;
    1085           3 :                         break;
    1086             :                 default:
    1087           2 :                         php_error_docref(NULL, E_WARNING,
    1088             :                                 "Invalid options: Conflicting word endianness");
    1089           2 :                         return FAILURE;
    1090             :         }
    1091             : 
    1092          43 :         return SUCCESS;
    1093             : }
    1094             : 
    1095             : /* {{{ proto GMP gmp_import(string data [, int word_size = 1, int options = GMP_MSW_FIRST | GMP_NATIVE_ENDIAN])
    1096             :    Imports a GMP number from a binary string */
    1097          27 : ZEND_FUNCTION(gmp_import)
    1098             : {
    1099             :         char *data;
    1100             :         size_t data_len;
    1101          27 :         zend_long size = 1;
    1102          27 :         zend_long options = GMP_MSW_FIRST | GMP_NATIVE_ENDIAN;
    1103             :         int order, endian;
    1104             :         mpz_ptr gmpnumber;
    1105             : 
    1106          27 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|ll", &data, &data_len, &size, &options) == FAILURE) {
    1107           1 :                 return;
    1108             :         }
    1109             : 
    1110          26 :         if (gmp_import_export_validate(size, options, &order, &endian) == FAILURE) {
    1111           4 :                 RETURN_FALSE;
    1112             :         }
    1113             : 
    1114          22 :         if ((data_len % size) != 0) {
    1115           3 :                 php_error_docref(NULL, E_WARNING,
    1116             :                         "Input length must be a multiple of word size");
    1117           3 :                 RETURN_FALSE;
    1118             :         }
    1119             : 
    1120          19 :         INIT_GMP_RETVAL(gmpnumber);
    1121             : 
    1122          19 :         mpz_import(gmpnumber, data_len / size, order, size, endian, 0, data);
    1123             : }
    1124             : /* }}} */
    1125             : 
    1126             : /* {{{ proto string gmp_export(GMP gmpnumber [, int word_size = 1, int options = GMP_MSW_FIRST | GMP_NATIVE_ENDIAN])
    1127             :    Exports a GMP number to a binary string */
    1128          26 : ZEND_FUNCTION(gmp_export)
    1129             : {
    1130             :         zval *gmpnumber_arg;
    1131          26 :         zend_long size = 1;
    1132          26 :         zend_long options = GMP_MSW_FIRST | GMP_NATIVE_ENDIAN;
    1133             :         int order, endian;
    1134             :         mpz_ptr gmpnumber;
    1135             :         gmp_temp_t temp_a;
    1136             : 
    1137          26 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|ll", &gmpnumber_arg, &size, &options) == FAILURE) {
    1138           1 :                 return;
    1139             :         }
    1140             : 
    1141          25 :         if (gmp_import_export_validate(size, options, &order, &endian) == FAILURE) {
    1142           4 :                 RETURN_FALSE;
    1143             :         }
    1144             : 
    1145          42 :         FETCH_GMP_ZVAL(gmpnumber, gmpnumber_arg, temp_a);
    1146             : 
    1147          21 :         if (mpz_sgn(gmpnumber) == 0) {
    1148           3 :                 RETURN_EMPTY_STRING();
    1149             :         } else {
    1150          18 :                 size_t bits_per_word = size * 8;
    1151          18 :                 size_t count = (mpz_sizeinbase(gmpnumber, 2) + bits_per_word - 1) / bits_per_word;
    1152             : 
    1153          36 :                 zend_string *out_string = zend_string_safe_alloc(count, size, 0, 0);
    1154          18 :                 mpz_export(ZSTR_VAL(out_string), NULL, order, size, endian, 0, gmpnumber);
    1155          18 :                 ZSTR_VAL(out_string)[ZSTR_LEN(out_string)] = '\0';
    1156             : 
    1157          18 :                 RETURN_NEW_STR(out_string);
    1158             :         }
    1159             : 
    1160             :         FREE_GMP_TEMP(temp_a);
    1161             : }
    1162             : /* }}} */
    1163             : 
    1164             : /* {{{ proto int gmp_intval(mixed gmpnumber)
    1165             :    Gets signed long value of GMP number */
    1166          19 : ZEND_FUNCTION(gmp_intval)
    1167             : {
    1168             :         zval *gmpnumber_arg;
    1169             : 
    1170          19 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &gmpnumber_arg) == FAILURE){
    1171           1 :                 return;
    1172             :         }
    1173             : 
    1174          43 :         if (IS_GMP(gmpnumber_arg)) {
    1175           7 :                 RETVAL_LONG(mpz_get_si(GET_GMP_FROM_ZVAL(gmpnumber_arg)));
    1176             :         } else {
    1177          22 :                 RETVAL_LONG(zval_get_long(gmpnumber_arg));
    1178             :         }
    1179             : }
    1180             : /* }}} */
    1181             : 
    1182             : /* {{{ proto string gmp_strval(mixed gmpnumber [, int base])
    1183             :    Gets string representation of GMP number  */
    1184         386 : ZEND_FUNCTION(gmp_strval)
    1185             : {
    1186             :         zval *gmpnumber_arg;
    1187         386 :         zend_long base = 10;
    1188             :         mpz_ptr gmpnum;
    1189             :         gmp_temp_t temp_a;
    1190             : 
    1191         386 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|l", &gmpnumber_arg, &base) == FAILURE) {
    1192           5 :                 return;
    1193             :         }
    1194             : 
    1195             :         /* Although the maximum base in general in GMP is 62, mpz_get_str()
    1196             :          * is explicitly limited to -36 when dealing with negative bases. */
    1197         381 :         if ((base < 2 && base > -2) || base > GMP_MAX_BASE || base < -36) {
    1198           9 :                 php_error_docref(NULL, E_WARNING, "Bad base for conversion: " ZEND_LONG_FMT " (should be between 2 and %d or -2 and -36)", base, GMP_MAX_BASE);
    1199           9 :                 RETURN_FALSE;
    1200             :         }
    1201             : 
    1202         744 :         FETCH_GMP_ZVAL(gmpnum, gmpnumber_arg, temp_a);
    1203             : 
    1204         366 :         gmp_strval(return_value, gmpnum, (int)base);
    1205             : 
    1206         366 :         FREE_GMP_TEMP(temp_a);
    1207             : }
    1208             : /* }}} */
    1209             : 
    1210             : /* {{{ proto GMP gmp_add(mixed a, mixed b)
    1211             :    Add a and b */
    1212          26 : ZEND_FUNCTION(gmp_add)
    1213             : {
    1214          26 :         gmp_binary_ui_op(mpz_add, mpz_add_ui);
    1215          26 : }
    1216             : /* }}} */
    1217             : 
    1218             : /* {{{ proto GMP gmp_sub(mixed a, mixed b)
    1219             :    Subtract b from a */
    1220           9 : ZEND_FUNCTION(gmp_sub)
    1221             : {
    1222           9 :         gmp_binary_ui_op(mpz_sub, mpz_sub_ui);
    1223           9 : }
    1224             : /* }}} */
    1225             : 
    1226             : /* {{{ proto GMP gmp_mul(mixed a, mixed b)
    1227             :    Multiply a and b */
    1228        1021 : ZEND_FUNCTION(gmp_mul)
    1229             : {
    1230        1021 :         gmp_binary_ui_op(mpz_mul, mpz_mul_ui);
    1231        1021 : }
    1232             : /* }}} */
    1233             : 
    1234             : /* {{{ proto array gmp_div_qr(mixed a, mixed b [, int round])
    1235             :    Divide a by b, returns quotient and reminder */
    1236          17 : ZEND_FUNCTION(gmp_div_qr)
    1237             : {
    1238             :         zval *a_arg, *b_arg;
    1239          17 :         zend_long round = GMP_ROUND_ZERO;
    1240             : 
    1241          17 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz|l", &a_arg, &b_arg, &round) == FAILURE) {
    1242           2 :                 return;
    1243             :         }
    1244             : 
    1245          15 :         switch (round) {
    1246             :         case GMP_ROUND_ZERO:
    1247          10 :                 gmp_zval_binary_ui_op2(return_value, a_arg, b_arg, mpz_tdiv_qr, (gmp_binary_ui_op2_t) mpz_tdiv_qr_ui, 1);
    1248          10 :                 break;
    1249             :         case GMP_ROUND_PLUSINF:
    1250           2 :                 gmp_zval_binary_ui_op2(return_value, a_arg, b_arg, mpz_cdiv_qr, (gmp_binary_ui_op2_t) mpz_cdiv_qr_ui, 1);
    1251           2 :                 break;
    1252             :         case GMP_ROUND_MINUSINF:
    1253           2 :                 gmp_zval_binary_ui_op2(return_value, a_arg, b_arg, mpz_fdiv_qr, (gmp_binary_ui_op2_t) mpz_fdiv_qr_ui, 1);
    1254           2 :                 break;
    1255             :         default:
    1256           1 :                 php_error_docref(NULL, E_WARNING, "Invalid rounding mode");
    1257           1 :                 RETURN_FALSE;
    1258             :         }
    1259             : }
    1260             : /* }}} */
    1261             : 
    1262             : /* {{{ proto GMP gmp_div_r(mixed a, mixed b [, int round])
    1263             :    Divide a by b, returns reminder only */
    1264          14 : ZEND_FUNCTION(gmp_div_r)
    1265             : {
    1266             :         zval *a_arg, *b_arg;
    1267          14 :         zend_long round = GMP_ROUND_ZERO;
    1268             : 
    1269          14 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz|l", &a_arg, &b_arg, &round) == FAILURE) {
    1270           2 :                 return;
    1271             :         }
    1272             : 
    1273          12 :         switch (round) {
    1274             :         case GMP_ROUND_ZERO:
    1275           7 :                 gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_tdiv_r, (gmp_binary_ui_op_t) mpz_tdiv_r_ui, 1);
    1276           7 :                 break;
    1277             :         case GMP_ROUND_PLUSINF:
    1278           2 :                 gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_cdiv_r, (gmp_binary_ui_op_t) mpz_cdiv_r_ui, 1);
    1279           2 :                 break;
    1280             :         case GMP_ROUND_MINUSINF:
    1281           2 :                 gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_fdiv_r, (gmp_binary_ui_op_t) mpz_fdiv_r_ui, 1);
    1282           2 :                 break;
    1283             :         default:
    1284           1 :                 php_error_docref(NULL, E_WARNING, "Invalid rounding mode");
    1285           1 :                 RETURN_FALSE;
    1286             :         }
    1287             : }
    1288             : /* }}} */
    1289             : 
    1290             : /* {{{ proto GMP gmp_div_q(mixed a, mixed b [, int round])
    1291             :    Divide a by b, returns quotient only */
    1292          15 : ZEND_FUNCTION(gmp_div_q)
    1293             : {
    1294             :         zval *a_arg, *b_arg;
    1295          15 :         zend_long round = GMP_ROUND_ZERO;
    1296             : 
    1297          15 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz|l", &a_arg, &b_arg, &round) == FAILURE) {
    1298           2 :                 return;
    1299             :         }
    1300             : 
    1301          13 :         switch (round) {
    1302             :         case GMP_ROUND_ZERO:
    1303           8 :                 gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_tdiv_q, (gmp_binary_ui_op_t) mpz_tdiv_q_ui, 1);
    1304           8 :                 break;
    1305             :         case GMP_ROUND_PLUSINF:
    1306           2 :                 gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_cdiv_q, (gmp_binary_ui_op_t) mpz_cdiv_q_ui, 1);
    1307           2 :                 break;
    1308             :         case GMP_ROUND_MINUSINF:
    1309           2 :                 gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_fdiv_q, (gmp_binary_ui_op_t) mpz_fdiv_q_ui, 1);
    1310           2 :                 break;
    1311             :         default:
    1312           1 :                 php_error_docref(NULL, E_WARNING, "Invalid rounding mode");
    1313           1 :                 RETURN_FALSE;
    1314             :         }
    1315             : 
    1316             : }
    1317             : /* }}} */
    1318             : 
    1319             : /* {{{ proto GMP gmp_mod(mixed a, mixed b)
    1320             :    Computes a modulo b */
    1321          26 : ZEND_FUNCTION(gmp_mod)
    1322             : {
    1323          26 :         gmp_binary_ui_op_no_zero(mpz_mod, (gmp_binary_ui_op_t) mpz_mod_ui);
    1324          26 : }
    1325             : /* }}} */
    1326             : 
    1327             : /* {{{ proto GMP gmp_divexact(mixed a, mixed b)
    1328             :    Divide a by b using exact division algorithm */
    1329           9 : ZEND_FUNCTION(gmp_divexact)
    1330             : {
    1331           9 :         gmp_binary_ui_op_no_zero(mpz_divexact, NULL);
    1332           9 : }
    1333             : /* }}} */
    1334             : 
    1335             : /* {{{ proto GMP gmp_neg(mixed a)
    1336             :    Negates a number */
    1337          11 : ZEND_FUNCTION(gmp_neg)
    1338             : {
    1339          11 :         gmp_unary_op(mpz_neg);
    1340          11 : }
    1341             : /* }}} */
    1342             : 
    1343             : /* {{{ proto GMP gmp_abs(mixed a)
    1344             :    Calculates absolute value */
    1345          12 : ZEND_FUNCTION(gmp_abs)
    1346             : {
    1347          12 :         gmp_unary_op(mpz_abs);
    1348          12 : }
    1349             : /* }}} */
    1350             : 
    1351             : /* {{{ proto GMP gmp_fact(int a)
    1352             :    Calculates factorial function */
    1353          16 : ZEND_FUNCTION(gmp_fact)
    1354             : {
    1355             :         zval *a_arg;
    1356             : 
    1357          16 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
    1358           2 :                 return;
    1359             :         }
    1360             : 
    1361          29 :         if (IS_GMP(a_arg)) {
    1362           2 :                 mpz_ptr gmpnum_tmp = GET_GMP_FROM_ZVAL(a_arg);
    1363           2 :                 if (mpz_sgn(gmpnum_tmp) < 0) {
    1364           1 :                         php_error_docref(NULL, E_WARNING, "Number has to be greater than or equal to 0");
    1365           1 :                         RETURN_FALSE;
    1366             :                 }
    1367             :         } else {
    1368             :                 /* Use convert_to_number first to detect getting non-integer */
    1369          12 :                 convert_scalar_to_number(a_arg);
    1370          24 :                 if (Z_TYPE_P(a_arg) != IS_LONG) {
    1371           3 :                         convert_to_long(a_arg);
    1372           3 :                         if (Z_LVAL_P(a_arg) >= 0) {
    1373             :                                 /* Only warn if we'll make it past the non-negative check */
    1374           3 :                                 php_error_docref(NULL, E_WARNING, "Number has to be an integer");
    1375             :                         }
    1376             :                 }
    1377          12 :                 if (Z_LVAL_P(a_arg) < 0) {
    1378           2 :                         php_error_docref(NULL, E_WARNING, "Number has to be greater than or equal to 0");
    1379           2 :                         RETURN_FALSE;
    1380             :                 }
    1381             :         }
    1382             : 
    1383          11 :         gmp_zval_unary_ui_op(return_value, a_arg, mpz_fac_ui);
    1384             : }
    1385             : /* }}} */
    1386             : 
    1387             : /* {{{ proto GMP gmp_pow(mixed base, int exp)
    1388             :    Raise base to power exp */
    1389          18 : ZEND_FUNCTION(gmp_pow)
    1390             : {
    1391             :         zval *base_arg;
    1392             :         mpz_ptr gmpnum_result, gmpnum_base;
    1393             :         gmp_temp_t temp_base;
    1394             :         zend_long exp;
    1395             : 
    1396          18 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zl", &base_arg, &exp) == FAILURE) {
    1397           5 :                 return;
    1398             :         }
    1399             : 
    1400          13 :         if (exp < 0) {
    1401           2 :                 php_error_docref(NULL, E_WARNING, "Negative exponent not supported");
    1402           2 :                 RETURN_FALSE;
    1403             :         }
    1404             : 
    1405          25 :         if (Z_TYPE_P(base_arg) == IS_LONG && Z_LVAL_P(base_arg) >= 0) {
    1406           3 :                 INIT_GMP_RETVAL(gmpnum_result);
    1407           3 :                 mpz_ui_pow_ui(gmpnum_result, Z_LVAL_P(base_arg), exp);
    1408             :         } else {
    1409          16 :                 FETCH_GMP_ZVAL(gmpnum_base, base_arg, temp_base);
    1410           7 :                 INIT_GMP_RETVAL(gmpnum_result);
    1411           7 :                 mpz_pow_ui(gmpnum_result, gmpnum_base, exp);
    1412           7 :                 FREE_GMP_TEMP(temp_base);
    1413             :         }
    1414             : }
    1415             : /* }}} */
    1416             : 
    1417             : /* {{{ proto GMP gmp_powm(mixed base, mixed exp, mixed mod)
    1418             :    Raise base to power exp and take result modulo mod */
    1419          20 : ZEND_FUNCTION(gmp_powm)
    1420             : {
    1421             :         zval *base_arg, *exp_arg, *mod_arg;
    1422             :         mpz_ptr gmpnum_base, gmpnum_exp, gmpnum_mod, gmpnum_result;
    1423          20 :         int use_ui = 0;
    1424             :         gmp_temp_t temp_base, temp_exp, temp_mod;
    1425             : 
    1426          20 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zzz", &base_arg, &exp_arg, &mod_arg) == FAILURE){
    1427           3 :                 return;
    1428             :         }
    1429             : 
    1430          34 :         FETCH_GMP_ZVAL(gmpnum_base, base_arg, temp_base);
    1431             : 
    1432          38 :         if (Z_TYPE_P(exp_arg) == IS_LONG && Z_LVAL_P(exp_arg) >= 0) {
    1433           8 :                 use_ui = 1;
    1434           8 :                 temp_exp.is_used = 0;
    1435             :         } else {
    1436          14 :                 FETCH_GMP_ZVAL_DEP(gmpnum_exp, exp_arg, temp_exp, temp_base);
    1437           6 :                 if (mpz_sgn(gmpnum_exp) < 0) {
    1438           1 :                         php_error_docref(NULL, E_WARNING, "Second parameter cannot be less than 0");
    1439           1 :                         FREE_GMP_TEMP(temp_base);
    1440           1 :                         FREE_GMP_TEMP(temp_exp);
    1441           1 :                         RETURN_FALSE;
    1442             :                 }
    1443             :         }
    1444          26 :         FETCH_GMP_ZVAL_DEP_DEP(gmpnum_mod, mod_arg, temp_mod, temp_exp, temp_base);
    1445             : 
    1446          12 :         if (!mpz_cmp_ui(gmpnum_mod, 0)) {
    1447           2 :                 php_error_docref(NULL, E_WARNING, "Modulus may not be zero");
    1448           2 :                 FREE_GMP_TEMP(temp_base);
    1449           2 :                 FREE_GMP_TEMP(temp_exp);
    1450           2 :                 FREE_GMP_TEMP(temp_mod);
    1451           2 :                 RETURN_FALSE;
    1452             :         }
    1453             : 
    1454          10 :         INIT_GMP_RETVAL(gmpnum_result);
    1455          10 :         if (use_ui) {
    1456           7 :                 mpz_powm_ui(gmpnum_result, gmpnum_base, (zend_ulong) Z_LVAL_P(exp_arg), gmpnum_mod);
    1457             :         } else {
    1458           3 :                 mpz_powm(gmpnum_result, gmpnum_base, gmpnum_exp, gmpnum_mod);
    1459           3 :                 FREE_GMP_TEMP(temp_exp);
    1460             :         }
    1461             : 
    1462          10 :         FREE_GMP_TEMP(temp_base);
    1463          10 :         FREE_GMP_TEMP(temp_mod);
    1464             : }
    1465             : /* }}} */
    1466             : 
    1467             : /* {{{ proto GMP gmp_sqrt(mixed a)
    1468             :    Takes integer part of square root of a */
    1469          11 : ZEND_FUNCTION(gmp_sqrt)
    1470             : {
    1471             :         zval *a_arg;
    1472             :         mpz_ptr gmpnum_a, gmpnum_result;
    1473             :         gmp_temp_t temp_a;
    1474             : 
    1475          11 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
    1476           2 :                 return;
    1477             :         }
    1478             : 
    1479          18 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1480             : 
    1481           8 :         if (mpz_sgn(gmpnum_a) < 0) {
    1482           3 :                 php_error_docref(NULL, E_WARNING, "Number has to be greater than or equal to 0");
    1483           3 :                 FREE_GMP_TEMP(temp_a);
    1484           3 :                 RETURN_FALSE;
    1485             :         }
    1486             : 
    1487           5 :         INIT_GMP_RETVAL(gmpnum_result);
    1488           5 :         mpz_sqrt(gmpnum_result, gmpnum_a);
    1489           5 :         FREE_GMP_TEMP(temp_a);
    1490             : }
    1491             : /* }}} */
    1492             : 
    1493             : /* {{{ proto array gmp_sqrtrem(mixed a)
    1494             :    Square root with remainder */
    1495          13 : ZEND_FUNCTION(gmp_sqrtrem)
    1496             : {
    1497             :         zval *a_arg;
    1498             :         mpz_ptr gmpnum_a, gmpnum_result1, gmpnum_result2;
    1499             :         gmp_temp_t temp_a;
    1500             :         zval result1, result2;
    1501             : 
    1502          13 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
    1503           1 :                 return;
    1504             :         }
    1505             : 
    1506          24 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1507             : 
    1508          11 :         if (mpz_sgn(gmpnum_a) < 0) {
    1509           2 :                 php_error_docref(NULL, E_WARNING, "Number has to be greater than or equal to 0");
    1510           2 :                 FREE_GMP_TEMP(temp_a);
    1511           2 :                 RETURN_FALSE;
    1512             :         }
    1513             : 
    1514           9 :         gmp_create(&result1, &gmpnum_result1);
    1515           9 :         gmp_create(&result2, &gmpnum_result2);
    1516             : 
    1517           9 :         array_init(return_value);
    1518           9 :         add_next_index_zval(return_value, &result1);
    1519           9 :         add_next_index_zval(return_value, &result2);
    1520             : 
    1521           9 :         mpz_sqrtrem(gmpnum_result1, gmpnum_result2, gmpnum_a);
    1522           9 :         FREE_GMP_TEMP(temp_a);
    1523             : }
    1524             : /* }}} */
    1525             : 
    1526             : /* {{{ proto GMP gmp_root(mixed a, int nth)
    1527             :    Takes integer part of nth root */
    1528          10 : ZEND_FUNCTION(gmp_root)
    1529             : {
    1530             :         zval *a_arg;
    1531             :         zend_long nth;
    1532             :         mpz_ptr gmpnum_a, gmpnum_result;
    1533             :         gmp_temp_t temp_a;
    1534             : 
    1535          10 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zl", &a_arg, &nth) == FAILURE) {
    1536           1 :                 return;
    1537             :         }
    1538             : 
    1539           9 :         if (nth <= 0) {
    1540           2 :                 php_error_docref(NULL, E_WARNING, "The root must be positive");
    1541           2 :                 RETURN_FALSE;
    1542             :         }
    1543             : 
    1544          14 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1545             : 
    1546           7 :         if (nth % 2 == 0 && mpz_sgn(gmpnum_a) < 0) {
    1547           1 :                 php_error_docref(NULL, E_WARNING, "Can't take even root of negative number");
    1548           1 :                 FREE_GMP_TEMP(temp_a);
    1549           1 :                 RETURN_FALSE;
    1550             :         }
    1551             : 
    1552           6 :         INIT_GMP_RETVAL(gmpnum_result);
    1553           6 :         mpz_root(gmpnum_result, gmpnum_a, (gmp_ulong) nth);
    1554           6 :         FREE_GMP_TEMP(temp_a);
    1555             : }
    1556             : /* }}} */
    1557             : 
    1558             : /* {{{ proto GMP gmp_rootrem(mixed a, int nth)
    1559             :    Calculates integer part of nth root and remainder */
    1560          10 : ZEND_FUNCTION(gmp_rootrem)
    1561             : {
    1562             :         zval *a_arg;
    1563             :         zend_long nth;
    1564             :         mpz_ptr gmpnum_a, gmpnum_result1, gmpnum_result2;
    1565             :         gmp_temp_t temp_a;
    1566             :         zval result1, result2;
    1567             : 
    1568          10 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zl", &a_arg, &nth) == FAILURE) {
    1569           1 :                 return;
    1570             :         }
    1571             : 
    1572           9 :         if (nth <= 0) {
    1573           2 :                 php_error_docref(NULL, E_WARNING, "The root must be positive");
    1574           2 :                 RETURN_FALSE;
    1575             :         }
    1576             : 
    1577          14 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1578             : 
    1579           7 :         if (nth % 2 == 0 && mpz_sgn(gmpnum_a) < 0) {
    1580           1 :                 php_error_docref(NULL, E_WARNING, "Can't take even root of negative number");
    1581           1 :                 FREE_GMP_TEMP(temp_a);
    1582           1 :                 RETURN_FALSE;
    1583             :         }
    1584             : 
    1585           6 :         gmp_create(&result1, &gmpnum_result1);
    1586           6 :         gmp_create(&result2, &gmpnum_result2);
    1587             : 
    1588           6 :         array_init(return_value);
    1589           6 :         add_next_index_zval(return_value, &result1);
    1590           6 :         add_next_index_zval(return_value, &result2);
    1591             : 
    1592             : #if GMP_51_OR_NEWER
    1593             :         /* mpz_rootrem() is supported since GMP 4.2, but buggy wrt odd roots
    1594             :          * of negative numbers */
    1595             :         mpz_rootrem(gmpnum_result1, gmpnum_result2, gmpnum_a, (gmp_ulong) nth);
    1596             : #else
    1597           6 :         mpz_root(gmpnum_result1, gmpnum_a, (gmp_ulong) nth);
    1598           6 :         mpz_pow_ui(gmpnum_result2, gmpnum_result1, (gmp_ulong) nth);
    1599           6 :         mpz_sub(gmpnum_result2, gmpnum_a, gmpnum_result2);
    1600             : #endif
    1601             : 
    1602           6 :         FREE_GMP_TEMP(temp_a);
    1603             : }
    1604             : /* }}} */
    1605             : 
    1606             : /* {{{ proto bool gmp_perfect_square(mixed a)
    1607             :    Checks if a is an exact square */
    1608          13 : ZEND_FUNCTION(gmp_perfect_square)
    1609             : {
    1610             :         zval *a_arg;
    1611             :         mpz_ptr gmpnum_a;
    1612             :         gmp_temp_t temp_a;
    1613             : 
    1614          13 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
    1615           1 :                 return;
    1616             :         }
    1617             : 
    1618          24 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1619             : 
    1620          11 :         RETVAL_BOOL((mpz_perfect_square_p(gmpnum_a) != 0));
    1621          11 :         FREE_GMP_TEMP(temp_a);
    1622             : }
    1623             : /* }}} */
    1624             : 
    1625             : /* {{{ proto int gmp_prob_prime(mixed a[, int reps])
    1626             :    Checks if a is "probably prime" */
    1627          40 : ZEND_FUNCTION(gmp_prob_prime)
    1628             : {
    1629             :         zval *gmpnumber_arg;
    1630             :         mpz_ptr gmpnum_a;
    1631          40 :         zend_long reps = 10;
    1632             :         gmp_temp_t temp_a;
    1633             : 
    1634          40 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|l", &gmpnumber_arg, &reps) == FAILURE) {
    1635           1 :                 return;
    1636             :         }
    1637             : 
    1638          78 :         FETCH_GMP_ZVAL(gmpnum_a, gmpnumber_arg, temp_a);
    1639             : 
    1640          38 :         RETVAL_LONG(mpz_probab_prime_p(gmpnum_a, reps));
    1641          38 :         FREE_GMP_TEMP(temp_a);
    1642             : }
    1643             : /* }}} */
    1644             : 
    1645             : /* {{{ proto GMP gmp_gcd(mixed a, mixed b)
    1646             :    Computes greatest common denominator (gcd) of a and b */
    1647          14 : ZEND_FUNCTION(gmp_gcd)
    1648             : {
    1649          14 :         gmp_binary_ui_op(mpz_gcd, (gmp_binary_ui_op_t) mpz_gcd_ui);
    1650          14 : }
    1651             : /* }}} */
    1652             : 
    1653             : /* {{{ proto array gmp_gcdext(mixed a, mixed b)
    1654             :    Computes G, S, and T, such that AS + BT = G = `gcd' (A, B) */
    1655          15 : ZEND_FUNCTION(gmp_gcdext)
    1656             : {
    1657             :         zval *a_arg, *b_arg;
    1658             :         mpz_ptr gmpnum_a, gmpnum_b, gmpnum_t, gmpnum_s, gmpnum_g;
    1659             :         gmp_temp_t temp_a, temp_b;
    1660             :         zval result_g, result_s, result_t;
    1661             : 
    1662          15 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz", &a_arg, &b_arg) == FAILURE){
    1663           3 :                 return;
    1664             :         }
    1665             : 
    1666          24 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1667          22 :         FETCH_GMP_ZVAL_DEP(gmpnum_b, b_arg, temp_b, temp_a);
    1668             : 
    1669          10 :         gmp_create(&result_g, &gmpnum_g);
    1670          10 :         gmp_create(&result_s, &gmpnum_s);
    1671          10 :         gmp_create(&result_t, &gmpnum_t);
    1672             : 
    1673          10 :         array_init(return_value);
    1674          10 :         add_assoc_zval(return_value, "g", &result_g);
    1675          10 :         add_assoc_zval(return_value, "s", &result_s);
    1676          10 :         add_assoc_zval(return_value, "t", &result_t);
    1677             : 
    1678          10 :         mpz_gcdext(gmpnum_g, gmpnum_s, gmpnum_t, gmpnum_a, gmpnum_b);
    1679          10 :         FREE_GMP_TEMP(temp_a);
    1680          10 :         FREE_GMP_TEMP(temp_b);
    1681             : }
    1682             : /* }}} */
    1683             : 
    1684             : /* {{{ proto GMP gmp_invert(mixed a, mixed b)
    1685             :    Computes the inverse of a modulo b */
    1686          14 : ZEND_FUNCTION(gmp_invert)
    1687             : {
    1688             :         zval *a_arg, *b_arg;
    1689             :         mpz_ptr gmpnum_a, gmpnum_b, gmpnum_result;
    1690             :         gmp_temp_t temp_a, temp_b;
    1691             :         int res;
    1692             : 
    1693          14 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz", &a_arg, &b_arg) == FAILURE){
    1694           2 :                 return;
    1695             :         }
    1696             : 
    1697          24 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1698          20 :         FETCH_GMP_ZVAL_DEP(gmpnum_b, b_arg, temp_b, temp_a);
    1699             : 
    1700           9 :         INIT_GMP_RETVAL(gmpnum_result);
    1701           9 :         res = mpz_invert(gmpnum_result, gmpnum_a, gmpnum_b);
    1702           9 :         FREE_GMP_TEMP(temp_a);
    1703           9 :         FREE_GMP_TEMP(temp_b);
    1704           9 :         if (!res) {
    1705             :                 zval_dtor(return_value);
    1706           5 :                 RETURN_FALSE;
    1707             :         }
    1708             : }
    1709             : /* }}} */
    1710             : 
    1711             : /* {{{ proto int gmp_jacobi(mixed a, mixed b)
    1712             :    Computes Jacobi symbol */
    1713          23 : ZEND_FUNCTION(gmp_jacobi)
    1714             : {
    1715          23 :         gmp_binary_opl(mpz_jacobi);
    1716          23 : }
    1717             : /* }}} */
    1718             : 
    1719             : /* {{{ proto int gmp_legendre(mixed a, mixed b)
    1720             :    Computes Legendre symbol */
    1721          23 : ZEND_FUNCTION(gmp_legendre)
    1722             : {
    1723          23 :         gmp_binary_opl(mpz_legendre);
    1724          23 : }
    1725             : /* }}} */
    1726             : 
    1727             : /* {{{ proto int gmp_cmp(mixed a, mixed b)
    1728             :    Compares two numbers */
    1729          12 : ZEND_FUNCTION(gmp_cmp)
    1730             : {
    1731             :         zval *a_arg, *b_arg;
    1732             : 
    1733          12 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz", &a_arg, &b_arg) == FAILURE){
    1734           3 :                 return;
    1735             :         }
    1736             : 
    1737           9 :         gmp_cmp(return_value, a_arg, b_arg);
    1738             : }
    1739             : /* }}} */
    1740             : 
    1741             : /* {{{ proto int gmp_sign(mixed a)
    1742             :    Gets the sign of the number */
    1743          10 : ZEND_FUNCTION(gmp_sign)
    1744             : {
    1745             :         /* Can't use gmp_unary_opl here, because mpz_sgn is a macro */
    1746             :         zval *a_arg;
    1747             :         mpz_ptr gmpnum_a;
    1748             :         gmp_temp_t temp_a;
    1749             : 
    1750          10 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &a_arg) == FAILURE){
    1751           2 :                 return;
    1752             :         }
    1753             : 
    1754          16 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    1755             : 
    1756           6 :         RETVAL_LONG(mpz_sgn(gmpnum_a));
    1757           6 :         FREE_GMP_TEMP(temp_a);
    1758             : }
    1759             : /* }}} */
    1760             : 
    1761       25104 : static void gmp_init_random(void)
    1762             : {
    1763       25104 :         if (!GMPG(rand_initialized)) {
    1764             :                 /* Initialize */
    1765           5 :                 gmp_randinit_mt(GMPG(rand_state));
    1766             :                 /* Seed */
    1767           5 :                 gmp_randseed_ui(GMPG(rand_state), GENERATE_SEED());
    1768             : 
    1769           5 :                 GMPG(rand_initialized) = 1;
    1770             :         }
    1771       25104 : }
    1772             : 
    1773             : /* {{{ proto GMP gmp_random([int limiter])
    1774             :    Gets random number */
    1775          34 : ZEND_FUNCTION(gmp_random)
    1776             : {
    1777          34 :         zend_long limiter = 20;
    1778             :         mpz_ptr gmpnum_result;
    1779             : 
    1780          34 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "|l", &limiter) == FAILURE) {
    1781           4 :                 return;
    1782             :         }
    1783             : 
    1784          30 :         INIT_GMP_RETVAL(gmpnum_result);
    1785          30 :         gmp_init_random();
    1786             : 
    1787             : #ifdef GMP_LIMB_BITS
    1788          30 :         mpz_urandomb(gmpnum_result, GMPG(rand_state), GMP_ABS (limiter) * GMP_LIMB_BITS);
    1789             : #else
    1790             :         mpz_urandomb(gmpnum_result, GMPG(rand_state), GMP_ABS (limiter) * __GMP_BITS_PER_MP_LIMB);
    1791             : #endif
    1792             : }
    1793             : /* }}} */
    1794             : 
    1795             : /* {{{ proto GMP gmp_random_seed(mixed seed)
    1796             :    Seed the RNG */
    1797           9 : ZEND_FUNCTION(gmp_random_seed)
    1798             : {
    1799             :         zval *seed;
    1800             :         mpz_ptr gmpnum_seed;
    1801             :         gmp_temp_t temp_a;
    1802             : 
    1803           9 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &seed) == FAILURE) {
    1804           0 :                 return;
    1805             :         }
    1806             : 
    1807           9 :         gmp_init_random();
    1808             : 
    1809          21 :         if (Z_TYPE_P(seed) == IS_LONG && Z_LVAL_P(seed) >= 0) {
    1810           3 :                 gmp_randseed_ui(GMPG(rand_state), Z_LVAL_P(seed));
    1811             :         }
    1812             :         else {
    1813          12 :                 FETCH_GMP_ZVAL(gmpnum_seed, seed, temp_a);
    1814             : 
    1815           5 :                 gmp_randseed(GMPG(rand_state), gmpnum_seed);
    1816             : 
    1817           5 :                 FREE_GMP_TEMP(temp_a);
    1818             :         }
    1819             : }
    1820             : /* }}} */
    1821             : 
    1822             : /* {{{ proto GMP gmp_random_bits(int bits)
    1823             :    Gets a random number in the range 0 to (2 ** n) - 1 */
    1824       10029 : ZEND_FUNCTION(gmp_random_bits)
    1825             : {
    1826             :         zend_long bits;
    1827             :         mpz_ptr gmpnum_result;
    1828             : 
    1829       10029 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &bits) == FAILURE) {
    1830           1 :                 return;
    1831             :         }
    1832             : 
    1833       10028 :         if (bits <= 0) {
    1834           2 :                 php_error_docref(NULL, E_WARNING, "The number of bits must be positive");
    1835           2 :                 RETURN_FALSE;
    1836             :         }
    1837             : 
    1838       10026 :         INIT_GMP_RETVAL(gmpnum_result);
    1839       10026 :         gmp_init_random();
    1840             : 
    1841       10026 :         mpz_urandomb(gmpnum_result, GMPG(rand_state), bits);
    1842             : }
    1843             : /* }}} */
    1844             : 
    1845             : /* {{{ proto GMP gmp_random_range(mixed min, mixed max)
    1846             :    Gets a random number in the range min to max */
    1847       15041 : ZEND_FUNCTION(gmp_random_range)
    1848             : {
    1849             :         zval *min_arg, *max_arg;
    1850             :         mpz_ptr gmpnum_min, gmpnum_max, gmpnum_result;
    1851             :         mpz_t gmpnum_range;
    1852             :         gmp_temp_t temp_a, temp_b;
    1853             : 
    1854       15041 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zz", &min_arg, &max_arg) == FAILURE) {
    1855           2 :                 return;
    1856             :         }
    1857             : 
    1858       15039 :         gmp_init_random();
    1859             : 
    1860       30078 :         FETCH_GMP_ZVAL(gmpnum_max, max_arg, temp_a);
    1861             : 
    1862       35091 :         if (Z_TYPE_P(min_arg) == IS_LONG && Z_LVAL_P(min_arg) >= 0) {
    1863        5014 :                 if (mpz_cmp_ui(gmpnum_max, Z_LVAL_P(min_arg)) <= 0) {
    1864           1 :                         FREE_GMP_TEMP(temp_a);
    1865           1 :                         php_error_docref(NULL, E_WARNING, "The minimum value must be less than the maximum value");
    1866           1 :                         RETURN_FALSE;
    1867             :                 }
    1868             : 
    1869        5013 :                 INIT_GMP_RETVAL(gmpnum_result);
    1870        5013 :                 mpz_init(gmpnum_range);
    1871             : 
    1872        5013 :                 if (Z_LVAL_P(min_arg) != 0) {
    1873           3 :                         mpz_sub_ui(gmpnum_range, gmpnum_max, Z_LVAL_P(min_arg) - 1);
    1874             :                 } else {
    1875        5010 :                         mpz_add_ui(gmpnum_range, gmpnum_max, 1);
    1876             :                 }
    1877             : 
    1878        5013 :                 mpz_urandomm(gmpnum_result, GMPG(rand_state), gmpnum_range);
    1879             : 
    1880        5013 :                 if (Z_LVAL_P(min_arg) != 0) {
    1881           3 :                         mpz_add_ui(gmpnum_result, gmpnum_result, Z_LVAL_P(min_arg));
    1882             :                 }
    1883             : 
    1884        5013 :                 mpz_clear(gmpnum_range);
    1885        5013 :                 FREE_GMP_TEMP(temp_a);
    1886             :         } else {
    1887       20050 :                 FETCH_GMP_ZVAL_DEP(gmpnum_min, min_arg, temp_b, temp_a);
    1888             : 
    1889       10025 :                 if (mpz_cmp(gmpnum_max, gmpnum_min) <= 0) {
    1890           2 :                         FREE_GMP_TEMP(temp_b);
    1891           2 :                         FREE_GMP_TEMP(temp_a);
    1892           2 :                         php_error_docref(NULL, E_WARNING, "The minimum value must be less than the maximum value");
    1893           2 :                         RETURN_FALSE;
    1894             :                 }
    1895             : 
    1896       10023 :                 INIT_GMP_RETVAL(gmpnum_result);
    1897       10023 :                 mpz_init(gmpnum_range);
    1898             : 
    1899       10023 :                 mpz_sub(gmpnum_range, gmpnum_max, gmpnum_min);
    1900       10023 :                 mpz_add_ui(gmpnum_range, gmpnum_range, 1);
    1901       10023 :                 mpz_urandomm(gmpnum_result, GMPG(rand_state), gmpnum_range);
    1902       10023 :                 mpz_add(gmpnum_result, gmpnum_result, gmpnum_min);
    1903             : 
    1904       10023 :                 mpz_clear(gmpnum_range);
    1905       10023 :                 FREE_GMP_TEMP(temp_b);
    1906       10023 :                 FREE_GMP_TEMP(temp_a);
    1907             :         }
    1908             : }
    1909             : /* }}} */
    1910             : 
    1911             : /* {{{ proto GMP gmp_and(mixed a, mixed b)
    1912             :    Calculates logical AND of a and b */
    1913          13 : ZEND_FUNCTION(gmp_and)
    1914             : {
    1915          13 :         gmp_binary_op(mpz_and);
    1916          13 : }
    1917             : /* }}} */
    1918             : 
    1919             : /* {{{ proto GMP gmp_or(mixed a, mixed b)
    1920             :    Calculates logical OR of a and b */
    1921          13 : ZEND_FUNCTION(gmp_or)
    1922             : {
    1923          13 :         gmp_binary_op(mpz_ior);
    1924          13 : }
    1925             : /* }}} */
    1926             : 
    1927             : /* {{{ proto GMP gmp_com(mixed a)
    1928             :    Calculates one's complement of a */
    1929          11 : ZEND_FUNCTION(gmp_com)
    1930             : {
    1931          11 :         gmp_unary_op(mpz_com);
    1932          11 : }
    1933             : /* }}} */
    1934             : 
    1935             : /* {{{ proto GMP gmp_nextprime(mixed a)
    1936             :    Finds next prime of a */
    1937           8 : ZEND_FUNCTION(gmp_nextprime)
    1938             : {
    1939           8 :    gmp_unary_op(mpz_nextprime);
    1940           8 : }
    1941             : /* }}} */
    1942             : 
    1943             : /* {{{ proto GMP gmp_xor(mixed a, mixed b)
    1944             :    Calculates logical exclusive OR of a and b */
    1945          13 : ZEND_FUNCTION(gmp_xor)
    1946             : {
    1947          13 :         gmp_binary_op(mpz_xor);
    1948          13 : }
    1949             : /* }}} */
    1950             : 
    1951             : /* {{{ proto void gmp_setbit(GMP a, int index[, bool set_clear])
    1952             :    Sets or clear bit in a */
    1953          15 : ZEND_FUNCTION(gmp_setbit)
    1954             : {
    1955             :         zval *a_arg;
    1956             :         zend_long index;
    1957          15 :         zend_bool set = 1;
    1958             :         mpz_ptr gmpnum_a;
    1959             : 
    1960          15 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol|b", &a_arg, gmp_ce, &index, &set) == FAILURE) {
    1961           5 :                 return;
    1962             :         }
    1963             : 
    1964          10 :         if (index < 0) {
    1965           1 :                 php_error_docref(NULL, E_WARNING, "Index must be greater than or equal to zero");
    1966           1 :                 RETURN_FALSE;
    1967             :         }
    1968             : 
    1969           9 :         gmpnum_a = GET_GMP_FROM_ZVAL(a_arg);
    1970             : 
    1971           9 :         if (set) {
    1972           7 :                 mpz_setbit(gmpnum_a, index);
    1973             :         } else {
    1974           2 :                 mpz_clrbit(gmpnum_a, index);
    1975             :         }
    1976             : }
    1977             : /* }}} */
    1978             : 
    1979             : /* {{{ proto void gmp_clrbit(GMP a, int index)
    1980             :    Clears bit in a */
    1981          13 : ZEND_FUNCTION(gmp_clrbit)
    1982             : {
    1983             :         zval *a_arg;
    1984             :         zend_long index;
    1985             :         mpz_ptr gmpnum_a;
    1986             : 
    1987          13 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol", &a_arg, gmp_ce, &index) == FAILURE){
    1988           4 :                 return;
    1989             :         }
    1990             : 
    1991           9 :         if (index < 0) {
    1992           2 :                 php_error_docref(NULL, E_WARNING, "Index must be greater than or equal to zero");
    1993           2 :                 RETURN_FALSE;
    1994             :         }
    1995             : 
    1996           7 :         gmpnum_a = GET_GMP_FROM_ZVAL(a_arg);
    1997           7 :         mpz_clrbit(gmpnum_a, index);
    1998             : }
    1999             : /* }}} */
    2000             : 
    2001             : /* {{{ proto bool gmp_testbit(mixed a, int index)
    2002             :    Tests if bit is set in a */
    2003          14 : ZEND_FUNCTION(gmp_testbit)
    2004             : {
    2005             :         zval *a_arg;
    2006             :         zend_long index;
    2007             :         mpz_ptr gmpnum_a;
    2008             :         gmp_temp_t temp_a;
    2009             : 
    2010          14 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zl", &a_arg, &index) == FAILURE){
    2011           1 :                 return;
    2012             :         }
    2013             : 
    2014          13 :         if (index < 0) {
    2015           2 :                 php_error_docref(NULL, E_WARNING, "Index must be greater than or equal to zero");
    2016           2 :                 RETURN_FALSE;
    2017             :         }
    2018             : 
    2019          22 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    2020          10 :         RETVAL_BOOL(mpz_tstbit(gmpnum_a, index));
    2021          10 :         FREE_GMP_TEMP(temp_a);
    2022             : }
    2023             : /* }}} */
    2024             : 
    2025             : /* {{{ proto int gmp_popcount(mixed a)
    2026             :    Calculates the population count of a */
    2027           8 : ZEND_FUNCTION(gmp_popcount)
    2028             : {
    2029           8 :         gmp_unary_opl((gmp_unary_opl_t) mpz_popcount);
    2030           8 : }
    2031             : /* }}} */
    2032             : 
    2033             : /* {{{ proto int gmp_hamdist(mixed a, mixed b)
    2034             :    Calculates hamming distance between a and b */
    2035          12 : ZEND_FUNCTION(gmp_hamdist)
    2036             : {
    2037          12 :         gmp_binary_opl((gmp_binary_opl_t) mpz_hamdist);
    2038          12 : }
    2039             : /* }}} */
    2040             : 
    2041             : /* {{{ proto int gmp_scan0(mixed a, int start)
    2042             :    Finds first zero bit */
    2043           9 : ZEND_FUNCTION(gmp_scan0)
    2044             : {
    2045             :         zval *a_arg;
    2046             :         mpz_ptr gmpnum_a;
    2047             :         gmp_temp_t temp_a;
    2048             :         zend_long start;
    2049             : 
    2050           9 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zl", &a_arg, &start) == FAILURE){
    2051           2 :                 return;
    2052             :         }
    2053             : 
    2054           7 :         if (start < 0) {
    2055           1 :                 php_error_docref(NULL, E_WARNING, "Starting index must be greater than or equal to zero");
    2056           1 :                 RETURN_FALSE;
    2057             :         }
    2058             : 
    2059          12 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    2060             : 
    2061           5 :         RETVAL_LONG(mpz_scan0(gmpnum_a, start));
    2062           5 :         FREE_GMP_TEMP(temp_a);
    2063             : }
    2064             : /* }}} */
    2065             : 
    2066             : /* {{{ proto int gmp_scan1(mixed a, int start)
    2067             :    Finds first non-zero bit */
    2068           9 : ZEND_FUNCTION(gmp_scan1)
    2069             : {
    2070             :         zval *a_arg;
    2071             :         mpz_ptr gmpnum_a;
    2072             :         gmp_temp_t temp_a;
    2073             :         zend_long start;
    2074             : 
    2075           9 :         if (zend_parse_parameters(ZEND_NUM_ARGS(), "zl", &a_arg, &start) == FAILURE){
    2076           2 :                 return;
    2077             :         }
    2078             : 
    2079           7 :         if (start < 0) {
    2080           1 :                 php_error_docref(NULL, E_WARNING, "Starting index must be greater than or equal to zero");
    2081           1 :                 RETURN_FALSE;
    2082             :         }
    2083             : 
    2084          12 :         FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
    2085             : 
    2086           5 :         RETVAL_LONG(mpz_scan1(gmpnum_a, start));
    2087           5 :         FREE_GMP_TEMP(temp_a);
    2088             : }
    2089             : /* }}} */
    2090             : 
    2091             : #endif  /* HAVE_GMP */
    2092             : 
    2093             : /*
    2094             :  * Local variables:
    2095             :  * tab-width: 4
    2096             :  * c-basic-offset: 4
    2097             :  * End:
    2098             :  * vim600: noet sw=4 ts=4 fdm=marker
    2099             :  * vim<600: noet sw=4 ts=4
    2100             :  */

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