Author: marshall
Date: Mon Apr 4 11:08:54 2016
New Revision: 265306
URL: http://llvm.org/viewvc/llvm-project?rev=265306&view=rev
Log:
Fix for Bug #27193; 'std::acos on complex does not agree with C'. Tests need
work; so the bug will stay open.
Modified:
libcxx/trunk/include/complex
Modified: libcxx/trunk/include/complex
URL:
http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/complex?rev=265306&r1=265305&r2=265306&view=diff
==============================================================================
--- libcxx/trunk/include/complex (original)
+++ libcxx/trunk/include/complex Mon Apr 4 11:08:54 2016
@@ -1399,7 +1399,7 @@ acos(const complex<_Tp>& __x)
}
if (isinf(__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());
complex<_Tp> __z = log(__x + sqrt(pow(__x, _Tp(2)) - _Tp(1)));
if (signbit(__x.imag()))
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