unwrap.hpp

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#pragma once
 
#include <cmath>
 
#include "NumCpp/Core/Internal/StaticAsserts.hpp"
#include "NumCpp/Core/Internal/StlAlgorithms.hpp"
#include "NumCpp/NdArray.hpp"
 
namespace nc
{
    //============================================================================
    // Method Description:
    template<typename dtype>
    dtype unwrap(dtype inValue) noexcept
    {
        STATIC_ASSERT_ARITHMETIC(dtype);
 
        return static_cast<dtype>(std::atan2(std::sin(inValue), std::cos(inValue)));
    }
 
    //============================================================================
    // Method Description:
    template<typename dtype>
    NdArray<dtype> unwrap(const NdArray<dtype>& inArray)
    {
        NdArray<dtype> returnArray(inArray.shape());
        stl_algorithms::transform(inArray.cbegin(),
                                  inArray.cend(),
                                  returnArray.begin(),
                                  [](dtype inValue) noexcept -> dtype { return unwrap(inValue); });
 
        return returnArray;
    }
} // namespace nc