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std::remove_pointer

性病：移除[医]指针

Defined in header ​​
template< class T > struct remove_pointer;​(since C++11)

提供成员类型胡枝子f。type所指的类型。T，或者，如果T不是指针type是相同的T...

成员类型

NameDefinition
typethe type pointed to by T or T if it's not a pointer

帮助者类型

template< class T > using remove_pointer_t = typename remove_pointer::type;​(since C++14)

可能的实施

模板<class T>结构删除[医]指针{tydufT类型；}；模板<class T>结构删除[医]指针<T%2A>{tydufT类型；}；模板<class T>结构删除[医]指针<T%2A模板<class T>结构删除[医]指针<T%2A挥发性>{ty胡枝子T型；}；模板<class T>结构删除[医]指针<T%2AConst挥发物>{tydurif T型；}；

*。

例

二次

#include <iostream>
#include <type_traits>
 
template<class T1, class T2>
void print_is_same() 
{
    std::cout << std::is_same<T1, T2>() << '\n';
}
 
void print_separator() 
{
    std::cout << "-----\n";
}
 
int main() 
{
    std::cout << std::boolalpha;
 
    print_is_same<int, int>(   // true
    print_is_same<int, int*>(  // false
    print_is_same<int, int**>( // false
 
    print_separator(
 
    print_is_same<int, std::remove_pointer<int>::type>(   // true
    print_is_same<int, std::remove_pointer<int*>::type>(  // true
    print_is_same<int, std::remove_pointer<int**>::type>( // false
 
    print_separator(
 
    print_is_same<int, std::remove_pointer<int* const>::type>(          // true
    print_is_same<int, std::remove_pointer<int* volatile>::type>(       // true
    print_is_same<int, std::remove_pointer<int* const volatile>::type>( // true
}

二次

产出：

二次

true
false
false
-----
true
true
false
-----
true
true
true

二次

另见

is_pointer (C++11)checks if a type is a pointer type (class template)
add_pointer (C++11)adds pointer to the given type (class template)

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在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。

http：//en.cppreference.com/w/cpp/type/Remove[医]指针

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