##// END OF EJS Templates
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[CPP utils] Added function alias macro...
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r39:cc47cd67a7b3
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@@ -1,21 +1,29
1 #ifndef CPP_UTILS_H
1 #ifndef CPP_UTILS_H
2 #define CPP_UTILS_H
2 #define CPP_UTILS_H
3
3
4 #include <type_traits>
4 #include <type_traits>
5
5
6 template< class... >
6 template< class... >
7 using void_t = void;
7 using void_t = void;
8
8
9 #define HAS_METHOD(method)\
9 #define HAS_METHOD(method)\
10 template <class T, class=void>\
10 template <class T, class=void>\
11 struct _has_##method : std::false_type{};\
11 struct _has_##method : std::false_type{};\
12 \
12 \
13 template <class T>\
13 template <class T>\
14 struct _has_##method<T, void_t<std::is_member_function_pointer<decltype(&T::method)>>>\
14 struct _has_##method<T, void_t<std::is_member_function_pointer<decltype(&T::method)>>>\
15 : std::true_type{};\
15 : std::true_type{};\
16 \
16 \
17 template< class T>\
17 template< class T>\
18 static inline constexpr bool has_##method = _has_##method<T>::value;
18 static inline constexpr bool has_##method = _has_##method<T>::value;
19
19
20 //taken from here https://www.fluentcpp.com/2017/10/27/function-aliases-cpp/
21 #define ALIAS_TEMPLATE_FUNCTION(highLevelF, lowLevelF) \
22 template <typename... Args> \
23 inline auto highLevelF(Args &&... args)->decltype(lowLevelF(std::forward<Args>(args)...)) \
24 { \
25 return lowLevelF(std::forward<Args>(args)...); \
26 }
27
20
28
21 #endif // CPP_UTILS_H
29 #endif // CPP_UTILS_H
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