#46587 [NEW]: mt_/rand produce out of range numbers when min = 0 and max > get_randmax

From: atomo64 at gmail dot com Operating system: Debian sid PHP version: 5.2.6 PHP Bug Type: *Math Functions Bug description: mt_/rand produce out of range numbers when min = 0 and max > get_randmax Description: ------------ Whenever min is set to 0 and max is set to anything greater than getrandmax (or the mt_ version) the returned PRN is always (despite the upper limit check in the example code) a number minor than 0. Reproduce code: --------------- define("UL", mt_getrandmax()+1000); $r=mt_rand(0, UL); if ($r < 0 || $r > UL) echo "Random value out of range\n"; Expected result: ---------------- No output Actual result: -------------- Random value out of range -- Edit bug report at http://bugs.php.net/?id=46587&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46587&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46587&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46587&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=46587&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=46587&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=46587&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=46587&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=46587&r=needscript Try newer version: http://bugs.php.net/fix.php?id=46587&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=46587&r=support Expected behavior: http://bugs.php.net/fix.php?id=46587&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=46587&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=46587&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=46587&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46587&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=46587&r=dst IIS Stability: http://bugs.php.net/fix.php?id=46587&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=46587&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=46587&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=46587&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=46587&r=mysqlcfg