[Bug libstdc++/61761] [C++11] std::proj returns incorrect values

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61761

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Fri May  3 19:25:05 2019
New Revision: 270859

URL: https://gcc.gnu.org/viewcvs?rev=270859&root=gcc&view=rev
Log:
Fix new testcase to not require std::copysign

Use __builtin_copysign{,f,l} when std::copysign isn't available.

        PR libstdc++/61761
        * testsuite/26_numerics/complex/proj.cc: Don't assume <cmath> defines
        std::copysign.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/testsuite/26_numerics/complex/proj.cc