std::meta::is_user_declared
From cppreference.com
| Defined in header <meta>
|
||
consteval bool is_user_declared( std::meta::info r );
|
(since C++26) | |
Returns true if r represents a function that is user-declared. Otherwise returns false.
Parameters
| r | - | a reflection value |
Return value
true if r represents a user-declared function; otherwise false.
Notes
If r does not represent a function, the result is false. In particular, the result is false if r represents a function template.
Example
Run this code
#include <meta>
struct Base
{
bool operator==(const Base&) const = default;
};
struct Derived : public Base
{
std::strong_ordering operator<=>(const Derived&) const = default;
// Derived::operator== is declared by the defaulted definition of operator<=>
};
static_assert(std::meta::is_user_declared(^^Base::operator==));
static_assert(!std::meta::is_user_declared(^^Derived::operator==));
static_assert(std::meta::is_user_declared(^^Derived::operator<=>));
int main() {}
See also
(C++26) |
checks if reflection represents a function (function) |
(C++26) |
checks if reflection represents a user-provided function (function) |