Bug #51396 [Fbk]: Math is Unreliable

Edit report at http://bugs.php.net/bug.php?id=51396&edit=1 ID: 51396 Updated by: pajoye@php.net Reported by: codeslinger at compsalot dot com Summary: Math is Unreliable Status: Feedback Type: Bug Package: Math related Operating System: any PHP Version: Irrelevant Assigned To: aharvey New Comment: Btw, it could be due to bad initialized data as well (as you experience it on unix as well). Can you try to run your script under valgrind too? Previous Comments: ------------------------------------------------------------------------ [2010-03-26 09:54:33] pajoye@php.net It looks to me in a bug at the number formatting in the Windows API (not php dependent). Other users met this problem on old XP systems. You could reproduce it using number_format only. Or maybe only with a single printf function. Can you try using another windows box or using 5.3.2-vc9 builds? Btw, it is not about bad or good attitude but about having something we can actually use to help you. I can understand your worries after having spent hours to debug this problem, but we will still use a small script to debug this problem, if any. ------------------------------------------------------------------------ [2010-03-26 09:40:23] codeslinger at compsalot dot com did you even LOOOKK at the script that I provided? it is not that complicated. a few loops and some array allocations. previous attempts to reduce this to anything simpler have been unsuccessful. this is exactly the attitude that causes me to be overwrought. ------------------------------------------------------------------------ [2010-03-26 09:30:30] pajoye@php.net Thank you for this bug report. To properly diagnose the problem, we need a short but complete example script to be able to reproduce this bug ourselves. A proper reproducing script starts with <?php and ends with ?>, is max. 10-20 lines long and does not require any external resources such as databases, etc. If the script requires a database to demonstrate the issue, please make sure it creates all necessary tables, stored procedures etc. Please avoid embedding huge scripts into the report. ------------------------------------------------------------------------ [2010-03-26 08:51:34] codeslinger at compsalot dot com oops, fixed. various attempts to isolate this to a simple test case have not yet succeeded. This program is the closest I've come to a simple test case. after many hours of working on this, what I can tell you is that it requires lots of calculations and the use of arrays. - lots of memory allocations. yes, I confess to being overwrought. I've got 3 years of work, and the future of my software company at stake with this bug. and a lot of experience with bug reports that get ignored, including the original entry for this bug. ------------------------------------------------------------------------ [2010-03-26 04:31:56] aharvey@php.net It looks like the Web server you've posted the sample code to is interpreting the PHP files, so it's impossible to get the source. If you could upload the files with an extension that's not being handled by your PHP module, that would be handy. If there's any chance of a more minimal test case, that would also be rather useful. Finally, without wanting to sound overly snarky, that description was about 1200 words too long and infinitely too overwrought. Brevity is appreciated. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/bug.php?id=51396 -- Edit this bug report at http://bugs.php.net/bug.php?id=51396&edit=1