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Fix for Bug #27193; 'std::acos on complex does not agree with C'. Tests need work; so the bug will stay open.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@265306 91177308-0d34-0410-b5e6-96231b3b80d8
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Marshall Clow
2016-04-04 16:08:54 +00:00
parent d2864678e0
commit a27781113c
1 changed files with 1 additions and 1 deletions
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include/complex
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@@ -1399,7 +1399,7 @@ acos(const complex<_Tp>& __x)
} }
if (isinf(__x.imag())) if (isinf(__x.imag()))
return complex<_Tp>(__pi/_Tp(2), -__x.imag()); return complex<_Tp>(__pi/_Tp(2), -__x.imag());
if (__x.real() == 0) if (__x.real() == 0 && (__x.imag() == 0 || isnan(__x.imag())))
return complex<_Tp>(__pi/_Tp(2), -__x.imag()); return complex<_Tp>(__pi/_Tp(2), -__x.imag());
complex<_Tp> __z = log(__x + sqrt(pow(__x, _Tp(2)) - _Tp(1))); complex<_Tp> __z = log(__x + sqrt(pow(__x, _Tp(2)) - _Tp(1)));
if (signbit(__x.imag())) if (signbit(__x.imag()))