NumCpp  2.6.2
A Templatized Header Only C++ Implementation of the Python NumPy Library
isnan.hpp
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1 
28 #pragma once
29 
32 #include "NumCpp/NdArray.hpp"
33 
34 #include <cmath>
35 
36 namespace nc
37 {
38  //============================================================================
39  // Method Description:
50  template<typename dtype>
51  bool isnan(dtype inValue) noexcept
52  {
54 
56  {
57  return false;
58  }
59 
60  return std::isnan(static_cast<double>(inValue)); // static_cast is needed for compiler error
61  }
62 
63  //============================================================================
64  // Method Description:
75  template<typename dtype>
77  {
78  NdArray<bool> returnArray(inArray.shape());
79  stl_algorithms::transform(inArray.cbegin(), inArray.cend(), returnArray.begin(),
80  [](dtype inValue) noexcept -> bool
81  {
82  return isnan(inValue);
83  });
84 
85  return returnArray;
86  }
87 } // namespace nc
#define STATIC_ASSERT_ARITHMETIC(dtype)
Definition: StaticAsserts.hpp:37
Holds info about the dtype.
Definition: DtypeInfo.hpp:41
Holds 1D and 2D arrays, the main work horse of the NumCpp library.
Definition: NdArrayCore.hpp:72
const_iterator cbegin() const noexcept
Definition: NdArrayCore.hpp:1270
Shape shape() const noexcept
Definition: NdArrayCore.hpp:4483
const_iterator cend() const noexcept
Definition: NdArrayCore.hpp:1614
iterator begin() noexcept
Definition: NdArrayCore.hpp:1214
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:51
NdArray< bool > isnan(const NdArray< dtype > &inArray)
Definition: isnan.hpp:76