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This commit is contained in:
Gael Guennebaud
2015-12-11 10:06:38 +01:00
parent 836da91b3f 6af52a1227
commit c684a07eba
8 changed files with 43 additions and 26 deletions
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9
Eigen/src/Core/functors/UnaryFunctors.h
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@@ -676,8 +676,13 @@ struct scalar_sign_op<Scalar,true> {
EIGEN_EMPTY_STRUCT_CTOR(scalar_sign_op)
EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const
{
typename NumTraits<Scalar>::Real aa = std::abs(a);
return (aa==0) ? Scalar(0) : (a/aa);
using std::abs;
typedef typename NumTraits<Scalar>::Real real_type;
real_type aa = abs(a);
if (aa==0)
return Scalar(0);
aa = 1./aa;
return Scalar(real(a)*aa, imag(a)*aa );
}
//TODO
//template <typename Packet>