std::meta::is_user_declared - cppreference.com
From cppreference.com
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
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
#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() {}