Jonathan Wakely 4f75543dc4 PR libstdc++/61761 fix std::proj for targets without C99 cproj ... The current generic implementation of __complex_proj used when cproj is not available calculates the wrong projection, giving a different result than given by C99's cproj. When C99 cproj is not available but isinf and copysign are, use those to give correct results for float, double and long double. Otherwise, and for other specializations of std::complex, just use a generic version that returns its argument, and so doesn't support infinities. We might want to consider adding additional overloads of __complex_proj to support extended types such as _Float64x, _Float128 etc. PR libstdc++/61761 * include/std/complex (__complex_proj): Return parameter unchanged. [_GLIBCXX_USE_C99_COMPLEX] (__complex_proj): Change overloads for floating-point types to take std::complex arguments. [_GLIBCXX_USE_C99_MATH_TR1] (__complex_proj): Add overloads for floating-point types. * testsuite/26_numerics/complex/proj.cc: New test. From-SVN: r270759		2019-05-01 01:08:36 +01:00
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backward	PR libstdc++/88066 Use <> for includes not ""	2019-03-21 12:07:10 +00:00
bits	Adjust doxygen comment for std::generate_n	2019-04-29 14:31:50 +01:00
c	Update copyright years.	2019-01-01 13:31:55 +01:00
c_compatibility	In C++17 <math.h> should not put special functions in global namespace	2019-03-21 14:03:56 +00:00
c_global	Define midpoint and lerp functions for C++20 (P0811R3)	2019-03-05 18:37:24 +00:00
c_std	Update copyright years.	2019-01-01 13:31:55 +01:00
debug	PR libstdc++/87431 re-adjust never-valueless optimizations	2019-04-05 17:56:09 +01:00
decimal	Update copyright years.	2019-01-01 13:31:55 +01:00
experimental	Remove redundant step in experimental::filesystem::path construction	2019-04-26 16:58:47 +01:00
ext	Disambiguate __gnu_cxx::append_ partial specialization	2019-02-22 01:15:58 +00:00
parallel	PR libstdc++/88607 replace or remove unnecessary UTF-8 characters	2019-01-03 20:38:11 +00:00
precompiled	Update copyright years.	2019-01-01 13:31:55 +01:00
profile	Fix after P0600.	2019-01-21 11:47:30 +00:00
pstl	Cleanup algorithm implementations	2019-04-20 22:45:58 +00:00
std	PR libstdc++/61761 fix std::proj for targets without C99 cproj	2019-05-01 01:08:36 +01:00
tr1	PR libstdc++/88066 Use <> for includes not ""	2019-03-21 12:07:10 +00:00
tr2	Fix after P0600.	2019-01-21 11:47:30 +00:00
Makefile.am	Integrate C++17 parallel algorithms	2019-03-21 23:48:49 +00:00
Makefile.in	Integrate C++17 parallel algorithms	2019-03-21 23:48:49 +00:00