std::is_volatile
From Get docs
Cpp/docs/latest/types/is volatile
std::is_volatile
Defined in header <type_traits>
|
||
---|---|---|
|
(since C++11) |
If T
is a volatile-qualified type (that is, volatile
, or const volatile
), provides the member constant value
equal true
. For any other type, value
is false
.
Template parameters
T | - | a type to check |
Helper variable template
|
(since C++17) |
Inherited from std::integral_constant
Member constants
value [static] |
true if T is a volatile-qualified type , false otherwise(public static member constant) |
Member functions
operator bool |
converts the object to bool , returns value (public member function) |
operator() (C++14) |
returns value (public member function) |
Member types
Type | Definition |
---|---|
value_type
|
bool
|
type
|
std::integral_constant<bool, value>
|
Possible implementation
|
Example
#include <iostream>
#include <type_traits>
int main()
{
std::cout << std::boolalpha;
std::cout << std::is_volatile<int>::value << '\n';
std::cout << std::is_volatile<volatile int>::value << '\n';
}
Output:
false
true
See also
(C++11) |
checks if a type is const-qualified (class template) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/types/is_volatile