#48939 [NEW]: ceil error

From: louis at frenzoo dot com Operating system: Linux PHP version: 5.2.10 PHP Bug Type: Math related Bug description: ceil error Description: ------------ ceil() does not give an correct expected result. I have read some bug reports before. I understand that there is floating point error, but it happens in just a simple math calculation, which is unacceptable in the below case. It created inaccurate result on simple math, it will also create chaos in more complicated ones. Reproduce code: --------------- $n = 100.0*1.1; print $n.'='.ceil($n); Expected result: ---------------- 110 = 110 Actual result: -------------- 110 = 111 -- Edit bug report at http://bugs.php.net/?id=48939&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48939&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48939&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48939&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48939&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48939&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48939&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48939&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48939&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48939&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48939&r=support Expected behavior: http://bugs.php.net/fix.php?id=48939&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48939&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48939&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48939&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48939&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48939&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48939&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48939&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48939&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48939&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48939&r=mysqlcfg