#49392 [NEW]: Many PHP tests try to verify float to integer overflow result

From: cndougla at linux dot vnet dot ibm dot com Operating system: Any PHP version: 6SVN-2009-08-27 (SVN) PHP Bug Type: Unknown/Other Function Bug description: Many PHP tests try to verify float to integer overflow result Description: ------------ Many tests have input values like 10.5e10 that must be converted to integer values. On 32-bit systems, the conversion overflows. According to the PHP manual: --- If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31), the result is undefined, since the float doesn't have enough precision to give an exact integer result. No warning, not even a notice will be issued when this happens! --- Therefore, the tests are attempting to verify undefined values. Reproduce code: --------------- We found a bunch of testcases with this issue by running in a ppc64 kernel / ppc32 userspace: ext/standard/tests/array/array_fill_variation1.phpt ext/standard/tests/array/array_keys_variation_002.phpt ext/standard/tests/general_functions/gettype_settype_variation2.phpt ext/standard/tests/strings/htmlspecialchars_decode_variation2.phpt ext/standard/tests/strings/pack.phpt ext/standard/tests/strings/sprintf_variation35.phpt ext/standard/tests/strings/sprintf_variation4.phpt ext/standard/tests/strings/sprintf_variation41.phpt ext/standard/tests/strings/strncasecmp_variation5.phpt ext/standard/tests/strings/strncmp_variation5.phpt ext/standard/tests/strings/strrpos_variation14.phpt ext/standard/tests/strings/strrpos_variation15.phpt ext/standard/tests/strings/vsprintf_variation15.phpt ext/standard/tests/strings/vsprintf_variation16.phpt ext/standard/tests/strings/vsprintf_variation4.phpt We also found the following test had issues on ppc64/ppc64: ext/standard/tests/strings/vsprintf_variation15_64bit.phpt Expected result: ---------------- These tests should not be checking for the value of the direct or indirect overflow of a float to integer conversion. The tests should have the one or two subtests that do this removed. Actual result: -------------- The tests fail on some platforms, especially split 64/32-bit installations. -- Edit bug report at http://bugs.php.net/?id=49392&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49392&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49392&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49392&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49392&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49392&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49392&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49392&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49392&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49392&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49392&r=support Expected behavior: http://bugs.php.net/fix.php?id=49392&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49392&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49392&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49392&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49392&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49392&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49392&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49392&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49392&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49392&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49392&r=mysqlcfg