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Generalize pow(x,e) such that x and e can be a different expression type or a scalar for either x or e. Add x.pow(e) with e an array expression.

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Gael Guennebaud
2015-07-20 13:57:55 +02:00
parent 2d93060291
commit 6544b49e59
5 changed files with 67 additions and 4 deletions
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18
Eigen/src/plugins/ArrayCwiseBinaryOps.h
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@@ -74,6 +74,24 @@ max
return (max)(Derived::PlainObject::Constant(rows(), cols(), other));
}
/** \returns an expression of the coefficient-wise power of \c *this to the given array of \a exponents.
*
* This function computes the coefficient-wise power.
*
* Example: \include Cwise_array_power_array.cpp
* Output: \verbinclude Cwise_array_power_array.out
*/
template<typename ExponentDerived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
const CwiseBinaryOp<internal::scalar_binary_pow_op<Scalar, typename ExponentDerived::Scalar>, const Derived, const ExponentDerived>
pow(const ArrayBase<ExponentDerived>& exponents) const
{
return CwiseBinaryOp<internal::scalar_binary_pow_op<Scalar, typename ExponentDerived::Scalar>, const Derived, const ExponentDerived>(
this->derived(),
exponents.derived()
);
}
// TODO code generating macros could be moved to Macros.h and could include generation of documentation
#define EIGEN_MAKE_CWISE_COMP_OP(OP, COMPARATOR) \
template<typename OtherDerived> \