> On 28 Jun 2021, at 11:16 AM, Nikita Popov <nikita....@gmail.com> wrote: > > The RFC is missing a precise description of how this function works with NaN > and negative zero. The expected behavior is that if min or max are NaN, an > exception is thrown, if num if NaN then NaN is returned, and the behavior wrt > negative zero is unspecified. This makes for an IEEE754-2008 style clamping > operation. Making negative zero smaller than positive zero would be an > IEEE754-2019 style clamp. > > I'm not really convinced that this is a worthwhile addition, but also not > particularly opposed to it. > > Regards, > Nikita
Will update the RFC with a more precise description. Didn’t know there existed IEEE standards for clamping operations. Adding exceptions for NaN values into min/max is something I agree would be expected behaviour since a non number in the range don’t really make sense. As for the negative zero behaviour though, I’m not sure how to address that since frankly it’s out of my league, and when would a range of -0, 0 make sense to have? Cannot see a value being placed between that expect for 0, so a `clamp(0, -0, 0)` would return 0 then? Thanks, Kim. -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: https://www.php.net/unsub.php
