reference bug report : normal_distribution::min()

[Akira Takahashi]

http://www.cplusplus.com/reference/random/normal_distribution/min/

This says follow:

Return value
numeric_limits<result_type>::min()

Return value should be

-numeric_limits<result_type>::infinity()

Boost.Random and libc++ implementation return -infinity().
Unfortunately, libstdc++ return min(). I already reported bug: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58098

[Catfish4]

At the bottom of each page there's a link for this kind of reporting.

http://www.cplusplus.com/contact.do?referrer=http%3A%2F%2Fwww.cplusplus.com%2Freference%2Frandom%2Fnormal_distribution%2Fmin%2F

[naraku9333]

@OP
I'm curious why you think this is a bug, std draft n3337 section 26.5.16 table 118 - Random number distribution requirements says min() returns glb (greatest lower bound). I didn't see anything specific to normal_distribution so this may not apply.

[Cubbi]

The special thing about normal_distribution is that its parameter type is double by default, and greatest lower bound is numeric_limits<double>::lowest(), not numeric_limits<double>::min().

[Akira Takahashi]

@Catfish4
Thank you for report link. I'll report the bug.

@naraku9333
numeric_limits<double>::min() means positive minimum value (not -max()). double's minimum value is numeric_limits<double>::lowest().