Bug #54598 [Opn->Ana]: bcpowmod() may return 1 if modulus is 1

Edit report at https://bugs.php.net/bug.php?id=54598&edit=1 ID: 54598 Updated by: cmb@php.net Reported by: okano1220 at gmail dot com -Summary: when exp is 0 ,bcpowmod returns 1 ,even if modulous is 1 +Summary: bcpowmod() may return 1 if modulus is 1 -Status: Open +Status: Analyzed Type: Bug Package: BC math related Operating System: linux,windows PHP Version: 5.3.6 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Thanks for reporting this issue and providing an appropriate patch! And sorry for the long delay! Previous Comments: ------------------------------------------------------------------------ [2011-04-24 16:15:50] okano1220 at gmail dot com Description: ------------ when setting bcpowmod 2nd parameter $right_operand to 0 and setting 3rd parameter $modulous to 1, bcpowmod returns 1. Ofcourse expected value is 0. Test script: --------------- <?php echo bcpomod(5,0,1); // 5**0%1 Expected result: ---------------- 0 Actual result: -------------- 1 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=54598&edit=1