NumCpp  2.10.1
A Templatized Header Only C++ Implementation of the Python NumPy Library
copySign.hpp
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1 #pragma once
29 
30 #include <cmath>
31 #include <string>
32 
36 #include "NumCpp/NdArray.hpp"
37 
38 namespace nc
39 {
40  //============================================================================
41  // Method Description:
50  template<typename dtype>
51  NdArray<dtype> copySign(const NdArray<dtype>& inArray1, const NdArray<dtype>& inArray2)
52  {
54 
55  if (inArray1.shape() != inArray2.shape())
56  {
57  THROW_INVALID_ARGUMENT_ERROR("input arrays are not consistant.");
58  }
59 
60  NdArray<dtype> returnArray(inArray1.shape());
62  inArray1.cend(),
63  inArray2.cbegin(),
64  returnArray.begin(),
65  [](dtype inValue1, dtype inValue2) -> dtype
66  { return inValue2 < dtype{ 0 } ? std::abs(inValue1) * -1 : std::abs(inValue1); });
67 
68  return returnArray;
69  }
70 } // namespace nc
#define THROW_INVALID_ARGUMENT_ERROR(msg)
Definition: Error.hpp:37
#define STATIC_ASSERT_ARITHMETIC(dtype)
Definition: StaticAsserts.hpp:39
Holds 1D and 2D arrays, the main work horse of the NumCpp library.
Definition: NdArrayCore.hpp:138
const_iterator cbegin() const noexcept
Definition: NdArrayCore.hpp:1308
Shape shape() const noexcept
Definition: NdArrayCore.hpp:4402
const_iterator cend() const noexcept
Definition: NdArrayCore.hpp:1616
iterator begin() noexcept
Definition: NdArrayCore.hpp:1258
OutputIt transform(InputIt first, InputIt last, OutputIt destination, UnaryOperation unaryFunction)
Definition: StlAlgorithms.hpp:775
Definition: Coordinate.hpp:45
auto abs(dtype inValue) noexcept
Definition: abs.hpp:49
NdArray< dtype > copySign(const NdArray< dtype > &inArray1, const NdArray< dtype > &inArray2)
Definition: copySign.hpp:51