OLD | NEW |
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_TEMPLATE_UTIL_H_ | 5 #ifndef BASE_TEMPLATE_UTIL_H_ |
6 #define BASE_TEMPLATE_UTIL_H_ | 6 #define BASE_TEMPLATE_UTIL_H_ |
7 | 7 |
8 #include <cstddef> // For size_t. | 8 #include <cstddef> // For size_t. |
9 | 9 |
10 #include "build/build_config.h" | 10 #include "build/build_config.h" |
(...skipping 10 matching lines...) Expand all Loading... |
21 }; | 21 }; |
22 | 22 |
23 template <class T, T v> const T integral_constant<T, v>::value; | 23 template <class T, T v> const T integral_constant<T, v>::value; |
24 | 24 |
25 typedef integral_constant<bool, true> true_type; | 25 typedef integral_constant<bool, true> true_type; |
26 typedef integral_constant<bool, false> false_type; | 26 typedef integral_constant<bool, false> false_type; |
27 | 27 |
28 template <class T> struct is_pointer : false_type {}; | 28 template <class T> struct is_pointer : false_type {}; |
29 template <class T> struct is_pointer<T*> : true_type {}; | 29 template <class T> struct is_pointer<T*> : true_type {}; |
30 | 30 |
| 31 // Member function pointer detection up to four params. Add more as needed |
| 32 // below. This is built-in to C++ 11, and we can remove this when we switch. |
| 33 template<typename T> |
| 34 struct is_member_function_pointer : false_type {}; |
| 35 |
| 36 template <typename R, typename Z> |
| 37 struct is_member_function_pointer<R(Z::*)()> : true_type {}; |
| 38 template <typename R, typename Z> |
| 39 struct is_member_function_pointer<R(Z::*)() const> : true_type {}; |
| 40 |
| 41 template <typename R, typename Z, typename A> |
| 42 struct is_member_function_pointer<R(Z::*)(A)> : true_type {}; |
| 43 template <typename R, typename Z, typename A> |
| 44 struct is_member_function_pointer<R(Z::*)(A) const> : true_type {}; |
| 45 |
| 46 template <typename R, typename Z, typename A, typename B> |
| 47 struct is_member_function_pointer<R(Z::*)(A, B)> : true_type {}; |
| 48 template <typename R, typename Z, typename A, typename B> |
| 49 struct is_member_function_pointer<R(Z::*)(A, B) const> : true_type {}; |
| 50 |
| 51 template <typename R, typename Z, typename A, typename B, typename C> |
| 52 struct is_member_function_pointer<R(Z::*)(A, B, C)> : true_type {}; |
| 53 template <typename R, typename Z, typename A, typename B, typename C> |
| 54 struct is_member_function_pointer<R(Z::*)(A, B, C) const> : true_type {}; |
| 55 |
| 56 template <typename R, typename Z, typename A, typename B, typename C, |
| 57 typename D> |
| 58 struct is_member_function_pointer<R(Z::*)(A, B, C, D)> : true_type {}; |
| 59 template <typename R, typename Z, typename A, typename B, typename C, |
| 60 typename D> |
| 61 struct is_member_function_pointer<R(Z::*)(A, B, C, D) const> : true_type {}; |
| 62 |
| 63 |
31 template <class T, class U> struct is_same : public false_type {}; | 64 template <class T, class U> struct is_same : public false_type {}; |
32 template <class T> struct is_same<T,T> : true_type {}; | 65 template <class T> struct is_same<T,T> : true_type {}; |
33 | 66 |
34 template<class> struct is_array : public false_type {}; | 67 template<class> struct is_array : public false_type {}; |
35 template<class T, size_t n> struct is_array<T[n]> : public true_type {}; | 68 template<class T, size_t n> struct is_array<T[n]> : public true_type {}; |
36 template<class T> struct is_array<T[]> : public true_type {}; | 69 template<class T> struct is_array<T[]> : public true_type {}; |
37 | 70 |
38 template <class T> struct is_non_const_reference : false_type {}; | 71 template <class T> struct is_non_const_reference : false_type {}; |
39 template <class T> struct is_non_const_reference<T&> : true_type {}; | 72 template <class T> struct is_non_const_reference<T&> : true_type {}; |
40 template <class T> struct is_non_const_reference<const T&> : false_type {}; | 73 template <class T> struct is_non_const_reference<const T&> : false_type {}; |
(...skipping 67 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
108 | 141 |
109 template<bool B, class T = void> | 142 template<bool B, class T = void> |
110 struct enable_if {}; | 143 struct enable_if {}; |
111 | 144 |
112 template<class T> | 145 template<class T> |
113 struct enable_if<true, T> { typedef T type; }; | 146 struct enable_if<true, T> { typedef T type; }; |
114 | 147 |
115 } // namespace base | 148 } // namespace base |
116 | 149 |
117 #endif // BASE_TEMPLATE_UTIL_H_ | 150 #endif // BASE_TEMPLATE_UTIL_H_ |
OLD | NEW |