Re: cvs: php-src /ext/standard/tests/math bug45712.phpt ZendEngine2 zend_operators.c

On Thu, 7 Aug 2008, Antony Dovgal wrote: > On 07.08.2008 14:02, Jani Taskinen wrote: > > You fixed by changing the test to be wrong? :) > > No, I fixed the test to show the same behavior with 4.4, 5.2, 5.3 and HEAD. > I also fixed comparison of NaN with empty strings and numbers. > > > Is not $nan == $nan or $nan === $nan true ? > > No, they are not equal: > "A NaN does not compare equal to any floating-point number or NaN, > even if the latter has an identical representation. One can therefore test > whether a variable has a NaN value by comparing it to itself (i.e. if then x > is NaN)." > http://en.wikipedia.org/wiki/NaN It's like NULL in SQL... regards, Derick -- HEAD before 5_3!: http://tinyurl.com/6d2esb http://derickrethans.nl | http://ezcomponents.org | http://xdebug.org