std::meta::is_final_type
Defined in header <meta> | ||
|---|---|---|
consteval bool is_final_type( std::meta::info r ); | (since C++26) |
Returns true if r represents a final class type. Otherwise returns false.
Parameters
| r | - | a reflection value |
Return value
true if r represents a final class type; otherwise false.
Exceptions
Throws std::meta::exception if r does not represent a type or type alias.
Example
#include <meta>
class A {};
static_assert(is_final_type(^^A) == false);
class B final {};
static_assert(is_final_type(^^B) == true);
union U final
{
int x;
double d;
};
static_assert(is_final_type(^^U) == true);
struct Base
{
virtual void foo();
};
struct Derived : Base
{
void foo() final; // final member function does not make the class final
};
static_assert(is_final_type(^^Derived) == false);
int main() {}
See also
|
(C++14) | checks if a type is a final class type (class template) |
|
(C++26) | checks if reflected type is a non-union class type (function) |
|
(C++26) | checks if reflected type is a union type (function) |
|
(C++26) | checks if reflected type is a polymorphic class type (function) |
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https://en.cppreference.com/cpp/meta/is_final_type
