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(gmp_init) Added extra (optional) argument to gmp_init():

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a base argument which indicates the number base. E.g.:
           gmp_init('1010101010',2); // feed gmp a binary value.
Patch by Troels.
@- Added optional extra argument to gmp_init(). The extra argument
@  indicates which number base gmp should use when converting a
@  string to the gmp-number. (Troels)
This commit is contained in:
Stanislav Malyshev 2001-08-05 14:48:17 +00:00
parent c7d7834a43
commit 02fea7ed23
1 changed files with 26 additions and 14 deletions
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40
ext/gmp/gmp.c
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@ -178,7 +178,7 @@ ZEND_MINFO_FUNCTION(gmp)
if(Z_TYPE_PP(zval) == IS_RESOURCE) { \
ZEND_FETCH_RESOURCE(gmpnumber, mpz_t *, zval, -1, GMP_RESOURCE_NAME, le_gmp);\
} else {\
if(convert_to_gmp(&gmpnumber,zval) == FAILURE) {\
if(convert_to_gmp(&gmpnumber,zval,0) == FAILURE) {\
RETURN_FALSE;\
}\
ZEND_REGISTER_RESOURCE(NULL, gmpnumber, le_gmp);\
@ -190,7 +190,7 @@ if(Z_TYPE_PP(zval) == IS_RESOURCE) { \
/* {{{ convert_to_gmp
* Convert zval to be gmp number */
static int convert_to_gmp(mpz_t * *gmpnumber, zval **val)
static int convert_to_gmp(mpz_t * *gmpnumber, zval **val, int base)
{
int ret = 0;
@ -207,11 +207,14 @@ static int convert_to_gmp(mpz_t * *gmpnumber, zval **val)
case IS_STRING:
{
char *numstr = Z_STRVAL_PP(val);
if(numstr[0] == '0' && (numstr[1] == 'x' || numstr[1] == 'X')) {
ret = mpz_init_set_str(**gmpnumber, numstr+2, 16);
} else {
ret = mpz_init_set_str(**gmpnumber, numstr, 10);
if (base==0) {
if(numstr[0] == '0' && (numstr[1] == 'x' || numstr[1] == 'X')) {
base=16;
} else {
base=10;
}
}
ret = mpz_init_set_str(**gmpnumber, numstr, base);
}
break;
default:
@ -434,22 +437,30 @@ static inline void _gmp_binary_opl(INTERNAL_FUNCTION_PARAMETERS, gmp_binary_opl_
}
/* }}} */
/* Remove the following function when you have succesfully modified config.m4
so that your module can be compiled into PHP, it exists only for testing
purposes. */
/* {{{ proto resource gmp_init(mixed number)
/* {{{ proto resource gmp_init(mixed number [, int base])
Initializes GMP number */
ZEND_FUNCTION(gmp_init)
{
zval **number_arg;
zval **number_arg, **base_arg;
mpz_t * gmpnumber;
int argc;
int base=0;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &number_arg) == FAILURE){
argc = ZEND_NUM_ARGS();
if (argc < 1 || argc > 2 || zend_get_parameters_ex(argc, &number_arg, &base_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
if(convert_to_gmp(&gmpnumber,number_arg) == FAILURE) {
if (argc==2) {
convert_to_long_ex(base_arg);
base = Z_LVAL_PP(base_arg);
if(base < 2 || base > 36) {
zend_error(E_WARNING, "Bad base for conversion: %d (should be between 2 and 36)", base);
RETURN_FALSE;
}
}
if(convert_to_gmp(&gmpnumber,number_arg,base) == FAILURE) {
RETURN_FALSE;
}
@ -516,6 +527,7 @@ ZEND_FUNCTION(gmp_strval)
num_len++;
}
mpz_get_str(out_string, base, *gmpnum);
out_string[num_len] = '\0';
RETVAL_STRINGL(out_string, num_len, 0);
}