Re: PHP floating point history and behaviour.

Hi 2009/7/28 Lupus Michaelis <mickael+php@lupusmic.org>: >  Hi, > >  I'm wondering where the Zend/zend_float.h include file is used. I'm > interested in because I'm checking the behaviour variation between PHP4 and > PHP5 (*), and floating point management seems to be fixed for all platforms > in an early version of PHP5 (revision r270301). > > By the way, this alteration change something for Intel 32 bit or nothong ? > It belongs the IEEE 754 ? > The floating point behaviour was changed in PHP 5.3, as in this RFC by Christian Seiler (cc'ed): http://wiki.php.net/rfc/rounding You can find where the zend_float.h file is included by a simple grep: C:\php\src\> grep -ri "zend_float" * Zend/zend_execute_API.c:#include "zend_float.h" Zend/zend_float.c:#include "zend_float.h" Zend/zend_float.h:/* $Id: zend_float.h 277398 2009-03-18 10:18:10Z dmitry $ */ Zend/zend_float.h:#ifndef ZEND_FLOAT_H Zend/zend_float.h:#define ZEND_FLOAT_H -- regrads, Kalle Sommer Nielsen kalle@php.net