Bug->Req #52167 [Opn]: gmp_pow does not accept gmp values

Edit report at http://bugs.php.net/bug.php?id=52167&edit=1 ID: 52167 Updated by: kalle@php.net Reported by: mark at hell dot ne dot jp Summary: gmp_pow does not accept gmp values Status: Open -Type: Bug +Type: Feature/Change Request Package: GNU MP related Operating System: Linux PHP Version: 5.3.2 New Comment: PHP 5.3 introduced unified parameter parsing, whereas in 5.2 there were alot of places manually converting types that were not compatible. gmp_pow()'s $exp parameter converted to an integer (long) no matter what type it had passed. In 5.3+ it was changed to require stricly to be compatible types to do type convertion. However I do not know the exact design reason for why you cannot pass an resource and only a long, so I've changed this to be a feature request Previous Comments: ------------------------------------------------------------------------ [2010-06-24 09:39:19] mark at hell dot ne dot jp Description: ------------ gmp_pow throws a "expects parameter 2 to be long" error when passed a gmp value. Works nicely with PHP 5.2.x but not with PHP 5.3. I am doing some maths for encryption with php which use large integers and I have to compute pow(a,b) with both values being large integers (~512 bits). I'm opening this bug so we can investigate why gmp_pow() has been modified to only accept integers as second argument, and if there is no good reason make it accept gmp values again. My guess is this change was done on the PHP_5_2 branch but not ported to PHP_5_3. Unfortunately svn blame couldn't fetch anything interesting to know why this became like this. Test script: --------------- $a=gmp_init(48974); $b=gmp_init(55); $c=gmp_pow($a,$b); var_dump(gmp_intval($c)); Expected result: ---------------- int(7944261659914959072) Actual result: -------------- Warning: gmp_pow() expects parameter 2 to be long, resource given in Command line code on line 1 int(0) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=52167&edit=1