#36306 [NEW]: crc32() function result differs on 32-bit and 64-bit platforms

From: anight at eyelinkmedia dot com Operating system: independant PHP version: 4.4.2 PHP Bug Type: Feature/Change Request Bug description: crc32() function result differs on 32-bit and 64-bit platforms Description: ------------ I noticed that crc32() function result is represented differently on 32-bit and 64-bit platforms. The problem is whithin crc32.c file, unsigned int crc = ~0; After actual crc32 calculations result is inverted and then casted to "long": RETVAL_LONG(~crc); Proposed patch: RETVAL_LONG(~ (long) crc); I tested it successfully on 64-bit linux and macosx, it works well. Reproduce code: --------------- <? echo crc32("platform independant") . "\n"; ?> Expected result: ---------------- I expect to see value -858128794 both on 32-bit and 64-bit platform. Actual result: -------------- On 64-bit platform i see 3436838502 On 32-bit -858128794 -- Edit bug report at http://bugs.php.net/?id=36306&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=36306&r=trysnapshot44 Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=36306&r=trysnapshot51 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=36306&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=36306&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=36306&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=36306&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=36306&r=needscript Try newer version: http://bugs.php.net/fix.php?id=36306&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=36306&r=support Expected behavior: http://bugs.php.net/fix.php?id=36306&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=36306&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=36306&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=36306&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36306&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=36306&r=dst IIS Stability: http://bugs.php.net/fix.php?id=36306&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=36306&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=36306&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=36306&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=36306&r=mysqlcfg