[Bug libstdc++/80137] [6/7 Regression] std::generate_canonical calls its generator a non-constant number of times

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80137

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu May 18 14:35:23 2017
New Revision: 248212

URL: https://gcc.gnu.org/viewcvs?rev=248212&root=gcc&view=rev
Log:
PR libstdc++/80137 use std::nextafter instead of looping

Backport from mainline
2017-03-28  Jonathan Wakely  <jwak...@redhat.com>

        PR libstdc++/80137
        * include/bits/random.tcc (generate_canonical): Use std::nextafter
        or numeric_limits::epsilon() to reduce out-of-range values.
        * testsuite/26_numerics/random/uniform_real_distribution/operators/
        64351.cc: Verify complexity requirement is met.

Modified:
    branches/gcc-6-branch/libstdc++-v3/ChangeLog