std::meta::is_user_provided
Defined in header <meta> | ||
|---|---|---|
consteval bool is_user_provided( std::meta::info r ); | (since C++26) |
Returns true if r represents a function that is user-provided. Otherwise returns false.
Parameters
| r | - | a reflection value |
Return value
true if r represents a user-provided 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 <compare>
#include <meta>
struct Base
{
bool operator==(const Base&) const;
std::strong_ordering operator<=>(const Base&) const = delete;
};
bool Base::operator==(const Base&) const = default;
struct Derived : public Base
{
bool operator==(const Derived&) const { return true; }
std::strong_ordering operator<=>(const Derived&) const = default;
};
static_assert(std::meta::is_user_provided(^^Base::operator==));
static_assert(!std::meta::is_user_provided(^^Base::operator<=>));
static_assert(std::meta::is_user_provided(^^Derived::operator==));
static_assert(!std::meta::is_user_provided(^^Derived::operator<=>));
int main() {}
See also
|
(C++26) | checks if reflection represents a function (function) |
|
(C++26) | checks if reflection represents a deleted function (function) |
|
(C++26) | checks if reflection represents a defaulted function (function) |
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