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std::meta::is_const_type
From cppreference.com
C++
Metaprogramming library
| Type traits (C++11) | ||||
| Compile-time rational arithmetic (C++11) | ||||
| Compile-time integer sequences (C++14) | ||||
(C++14) | ||||
| Compile-time reflection (C++26) |
Reflection library
| Defined in header <meta>
|
||
consteval bool is_const_type( std::meta::info r );
|
(since C++26) | |
Returns true if r represents a const-qualified type. Otherwise returns false.
Parameters
| r | - | a reflection value |
Return value
true if r represents a const-qualified type; otherwise false.
Exceptions
Throws std::meta::exception if r does not represent a type or type alias.
Example
Run this code
#include <meta>
static_assert
(""
&& is_const_type(^^const int)
&& !is_const_type(^^int)
&& is_const_type(^^volatile const int)
&& !is_const_type(^^int*)
&& is_const_type(^^int* const)
&& !is_const_type(^^int const*)
);
int main() {}
See also
(C++26) |
checks if reflection represents a const type or a function type with const qualifier (function) [edit] |
(C++11) |
checks if a type is const-qualified (class template) [edit] |