Req->Bug #49392 [Opn->Fbk]: Many tests try to verify float to integer overflow result

Edit report at http://bugs.php.net/bug.php?id=49392&edit=1 ID: 49392 Updated by: jani@php.net Reported by: cndougla at linux dot vnet dot ibm dot com Summary: Many tests try to verify float to integer overflow result -Status: Open +Status: Feedback -Type: Feature/Change Request +Type: Bug -Package: Feature/Change Request +Package: *General Issues Operating System: * -PHP Version: 6SVN-2009-08-27 (SVN) +PHP Version: * Block user comment: N Private report: N New Comment: Can you update the list of failing tests with current PHP_5_3 / trunk ? Previous Comments: ------------------------------------------------------------------------ [2009-08-27 18:45:27] cndougla at linux dot vnet dot ibm dot com 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 this bug report at http://bugs.php.net/bug.php?id=49392&edit=1