outer_product.hpp

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// SPDX-License-Identifier: BSD-2-Clause
 
#ifndef pRC_CORE_TENSOR_FUNCTIONS_OUTER_PRODUCT_H
#define pRC_CORE_TENSOR_FUNCTIONS_OUTER_PRODUCT_H
 
#include <prc/core/functors/conj.hpp>
#include <prc/core/functors/tensor_product.hpp>
#include <prc/core/tensor/declarations.hpp>
 
namespace pRC
{
    template<class XA, class XB, IsTensorish RA = RemoveReference<XA>,
        IsTensorish RB = RemoveReference<XB>>
        requires IsInvocable<TensorProduct, XA, ResultOf<Conj, XB>>
    static inline constexpr auto outerProduct(XA &&a, XB &&b)
    {
        return tensorProduct(forward<XA>(a), conj(forward<XB>(b)));
    }
}
#endif // pRC_CORE_TENSOR_FUNCTIONS_OUTER_PRODUCT_H