Doc #53852 [Opn]: Bug with conversation from float

From: Date: Thu, 27 Jan 2011 14:53:24 +0000
Subject: Doc #53852 [Opn]: Bug with conversation from float
References: 1  Groups: php.doc.bugs 
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Edit report at http://bugs.php.net/bug.php?id=53852&edit=1 ID: 53852 User updated by: dohardgopro at gmail dot com Reported by: dohardgopro at gmail dot com Summary: Bug with conversation from float Status: Open Type: Documentation Problem Package: Variables related -Operating System: Freebsd +Operating System: Freebsd AMD64 PHP Version: 5.2.17 Block user comment: N Private report: N New Comment: Add architecture Previous Comments: ------------------------------------------------------------------------ [2011-01-27 11:53:11] rquadling@php.net You should count yourself lucky! At least your conversion is in the ballpark. On my 32bit windows ... php -r "var_dump((int)((float)4043529379404059246));" 381D808C0A3C126E int(171708928) A3C1200 The hex values shows something interesting. 4043529379404059246 = 0x381D808C0A3C126E 171708928 = 0x000000000A3C1200 4043529379404059136 = 0x381D808C0A3C1200 So, the 32bit truncation is sort of expected, but the chopping of the lower 8 bits isn't. ------------------------------------------------------------------------ [2011-01-27 11:33:22] dohardgopro at gmail dot com Description: ------------ --- From manual page: http://www.php.net/language.types.float --- Test script: --------------- var_dump((int)((float)4043529379404059246)); Output: 4043529379404059136 Expected: 4043529379404059246 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=53852&edit=1

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