NumCpp  2.7.0
A Templatized Header Only C++ Implementation of the Python NumPy Library
isnan.hpp
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1 #pragma once
29 
32 #include "NumCpp/NdArray.hpp"
33 
34 #include <cmath>
35 
36 namespace nc
37 {
38  //============================================================================
39  // Method Description:
48  template<typename dtype>
49  bool isnan(dtype inValue) noexcept
50  {
52 
54  {
55  return false;
56  }
57 
58  return std::isnan(static_cast<double>(inValue)); // static_cast is needed for compiler error
59  }
60 
61  //============================================================================
62  // Method Description:
71  template<typename dtype>
73  {
74  NdArray<bool> returnArray(inArray.shape());
75  stl_algorithms::transform(inArray.cbegin(), inArray.cend(), returnArray.begin(),
76  [](dtype inValue) noexcept -> bool
77  {
78  return isnan(inValue);
79  });
80 
81  return returnArray;
82  }
83 } // namespace nc
#define STATIC_ASSERT_ARITHMETIC(dtype)
Definition: StaticAsserts.hpp:37
Holds info about the dtype.
Definition: DtypeInfo.hpp:41
const_iterator cbegin() const noexcept
Definition: NdArrayCore.hpp:1216
Shape shape() const noexcept
Definition: NdArrayCore.hpp:4283
const_iterator cend() const noexcept
Definition: NdArrayCore.hpp:1524
iterator begin() noexcept
Definition: NdArrayCore.hpp:1166
OutputIt transform(InputIt first, InputIt last, OutputIt destination, UnaryOperation unaryFunction)
Definition: StlAlgorithms.hpp:702
Definition: Coordinate.hpp:45
bool isnan(dtype inValue) noexcept
Definition: isnan.hpp:49
NdArray< bool > isnan(const NdArray< dtype > &inArray)
Definition: isnan.hpp:72