std::add_cv, std::add_const, std::add_volatile
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| Defined in header <type_traits>
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| template< class T > struct add_cv; |
(1) | (C++11 起) |
| template< class T > struct add_const; |
(2) | (C++11 起) |
| template< class T > struct add_volatile; |
(3) | (C++11 起) |
Provides the member typedef type which is the same as T, except it has a cv-qualifier added (unless T is a function, a reference, or already has this cv-qualifier)
1) adds both const and volatile
2) adds const
3) adds volatile
目录 |
[编辑] 会员类型
| 姓名
Original: Name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
type
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the type T with the cv-qualifier
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[编辑] 可能的实现
template< class T > struct add_cv { typedef typename std::add_volatile<typename std::add_const<T>::type>::type type; }; template< class T> struct add_const { typedef const T type; }; template< class T> struct add_volatile { typedef volatile T type; }; |
[编辑] 为例
| 本节是不完整的 原因: no example |
[编辑] 另请参阅
| (C++11) |
检查如果一个类型是const限定 Original: checks if a type is const-qualified The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (类模板) |
| (C++11) |
类型检查,如果是挥发合格的 Original: checks if a type is volatile-qualified The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (类模板) |
| (C++11) (C++11) (C++11) |
移除const和/或volatile从给定的类型说明符 Original: removes const or/and volatile specifiers from the given type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (类模板) |