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-rw-r--r--libcxx/include/complex2
1 files changed, 2 insertions, 0 deletions
diff --git a/libcxx/include/complex b/libcxx/include/complex
index 6f8815298ca..07d3754658f 100644
--- a/libcxx/include/complex
+++ b/libcxx/include/complex
@@ -1249,10 +1249,12 @@ acosh(const complex<_Tp>& __x)
if (isnan(__x.imag()))
return complex<_Tp>(abs(__x.real()), __x.imag());
if (isinf(__x.imag()))
+ {
if (__x.real() > 0)
return complex<_Tp>(__x.real(), copysign(__pi * _Tp(0.25), __x.imag()));
else
return complex<_Tp>(-__x.real(), copysign(__pi * _Tp(0.75), __x.imag()));
+ }
if (__x.real() < 0)
return complex<_Tp>(-__x.real(), copysign(__pi, __x.imag()));
return complex<_Tp>(__x.real(), copysign(_Tp(0), __x.imag()));
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