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traits.h
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1 //
2 // Copyright 2016 Pixar
3 //
4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
6 // compliance with the Apache License and the following modification to it:
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9 // 6. Trademarks. This License does not grant permission to use the trade
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14 // You may obtain a copy of the Apache License at
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24 #ifndef PXR_BASE_GF_TRAITS_H
25 #define PXR_BASE_GF_TRAITS_H
26 
27 #include "pxr/pxr.h"
28 
29 #include <type_traits>
30 
32 
33 /// A metafunction with a static const bool member 'value' that is true for
34 /// GfVec types, like GfVec2i, GfVec4d, etc and false for all other types.
35 template <class T>
36 struct GfIsGfVec { static const bool value = false; };
37 
38 /// A metafunction with a static const bool member 'value' that is true for
39 /// GfMatrix types, like GfMatrix3d, GfMatrix4f, etc and false for all other
40 /// types.
41 template <class T>
42 struct GfIsGfMatrix { static const bool value = false; };
43 
44 /// A metafunction with a static const bool member 'value' that is true for
45 /// GfQuat types and false for all other types.
46 template <class T>
47 struct GfIsGfQuat { static const bool value = false; };
48 
49 /// A metafunction with a static const bool member 'value' that is true for
50 /// GfRange types and false for all other types.
51 template <class T>
52 struct GfIsGfRange { static const bool value = false; };
53 
54 /// A metafunction which is equivalent to std::is_floating_point but
55 /// allows for additional specialization for types like GfHalf
56 template <class T>
57 struct GfIsFloatingPoint : public std::is_floating_point<T>{};
58 
59 /// A metafunction which is equivalent to std::arithmetic but
60 /// also includes any specializations from GfIsFloatingPoint (like GfHalf)
61 template <class T>
62 struct GfIsArithmetic : public std::integral_constant<
63  bool, GfIsFloatingPoint<T>::value || std::is_arithmetic<T>::value>{};
64 
66 
67 #endif // PXR_BASE_GF_TRAITS_H
PXR_NAMESPACE_CLOSE_SCOPE PXR_NAMESPACE_OPEN_SCOPE
Definition: path.h:1346
#define PXR_NAMESPACE_CLOSE_SCOPE
Definition: pxr.h:91
GLsizei const GLfloat * value
Definition: glew.h:1849