#44092 [NEW]: exp() function returns incorrect result if passed hex

From: zoe@php.net Operating system: Linux 32 PHP version: 5.3CVS-2008-02-10 (CVS) PHP Bug Type: *Math Functions Bug description: exp() function returns incorrect result if passed hex Description: ------------ In PHP5.3 is a hex string is passed to exp() it is interpreted as 0 and the result of exp(0) = 1 is returned. In PHP6 the hex string is correctly interpreted and the corrcet value is returned by exp(). I believe the PHP6 behaviour is preferred. This patch http://www.pastebin.ca/898812 corrects the PHP5.3 behaviour. Reproduce code: --------------- --TEST-- Test exp() - pass exp hex string --INI-- precision=14 --FILE-- <?php $value= "0x5F"; $res = exp($value); var_dump($res); ?> --EXPECTF-- float(1.811239082889E+41) Expected result: ---------------- See above Actual result: -------------- 1 -- Edit bug report at http://bugs.php.net/?id=44092&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=44092&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44092&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44092&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44092&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=44092&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=44092&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=44092&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=44092&r=needscript Try newer version: http://bugs.php.net/fix.php?id=44092&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=44092&r=support Expected behavior: http://bugs.php.net/fix.php?id=44092&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=44092&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=44092&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=44092&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=44092&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=44092&r=dst IIS Stability: http://bugs.php.net/fix.php?id=44092&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=44092&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=44092&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=44092&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=44092&r=mysqlcfg