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add missing support for std::pow(array,scalar)

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This commit is contained in:
Gael Guennebaud 2010-06-19 23:17:07 +02:00
parent eba418a458
commit 575ac5409c
2 changed files with 12 additions and 0 deletions
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6
Eigen/src/Array/GlobalFunctions.h
View File

@ -60,6 +60,12 @@ namespace std
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(log,ei_scalar_log_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(abs,ei_scalar_abs_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(sqrt,ei_scalar_sqrt_op)
template<typename Derived>
inline const Eigen::CwiseUnaryOp<Eigen::ei_scalar_pow_op<typename Derived::Scalar>, Derived>
pow(const Eigen::ArrayBase<Derived>& x, const typename Derived::Scalar& exponent) { \
return x.derived().pow(exponent); \
}
}
namespace Eigen

6
test/array.cpp
View File

@ -171,6 +171,12 @@ template<typename ArrayType> void array_real(const ArrayType& m)
VERIFY_IS_APPROX(m1.exp() * m2.exp(), std::exp(m1+m2));
VERIFY_IS_APPROX(m1.exp(), ei_exp(m1));
VERIFY_IS_APPROX(m1.exp() / m2.exp(), std::exp(m1-m2));
VERIFY_IS_APPROX(m1.pow(2), m1.square());
VERIFY_IS_APPROX(std::pow(m1,2), m1.square());
m3 = m1.abs();
VERIFY_IS_APPROX(m3.pow(RealScalar(0.5)), m3.sqrt());
VERIFY_IS_APPROX(std::pow(m3,RealScalar(0.5)), m3.sqrt());
}
void test_array()