NAN/INF->int conversion in 5.6

From: Date: Sun, 28 Jun 2015 00:46:02 +0000
Subject: NAN/INF->int conversion in 5.6
Groups: php.internals 
Request: Send a blank email to internals+get-86922@lists.php.net to get a copy of this message
Hi! Working on cleaning up the spec, I've discovered that in PHP 5.6 and below conversion of NAN to int produces unexpected result of -9223372036854775808 (on 64-bit, 32-bit probably different). In PHP 7, it produces expected 0. See e.g.: http://3v4l.org/RKQuu Same weirdness is for INF and -INF which sometimes produce 0 (e.g. on my local machine) and sometimes -9223372036854775808 - e.g. http://3v4l.org/ivX1D My question is: should we backport code from PHP 7 that checks for infinity/nan and put it into 5.6? Or it's not worth it and it's ok for 5.6 to return random weird stuff there? (I know it's not exactly random and there's a reason why it's that number but it looks that way). -- Stas Malyshev smalyshev@gmail.com

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