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bug #1250: fix pow() for AutoDiffScalar with custom nested scalar type.

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This commit is contained in:
Gael Guennebaud 2016-07-25 14:42:19 +02:00
parent fd1117f2be
commit f9598d73b5
1 changed files with 2 additions and 1 deletions
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3
unsupported/Eigen/src/AutoDiff/AutoDiffScalar.h
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@ -617,7 +617,8 @@ EIGEN_EXPR_BINARYOP_SCALAR_RETURN_TYPE(typename internal::remove_all<DerType>::t
pow(const Eigen::AutoDiffScalar<DerType> &x, const typename internal::traits<typename internal::remove_all<DerType>::type>::Scalar &y) pow(const Eigen::AutoDiffScalar<DerType> &x, const typename internal::traits<typename internal::remove_all<DerType>::type>::Scalar &y)
{ {
using namespace Eigen; using namespace Eigen;
return Eigen::MakeAutoDiffScalar(std::pow(x.value(),y), x.derivatives() * (y * std::pow(x.value(),y-1))); using std::pow;
return Eigen::MakeAutoDiffScalar(pow(x.value(),y), x.derivatives() * (y * pow(x.value(),y-1)));
} }