std::meta::is_data_member_spec

 

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Defined in header <meta>
constexpr std::meta::info is_data_member_spec( std::meta::info r );		(since C++26)

Determines if r represents a data member description (returned by std::meta::data_member_spec). Returns true if it does, false otherwise.

Parameters

r

-

a reflection value

Return value

true if r represents a data member description, false otherwise.

Notes

Data member descriptions can be reified to data members of a class using std::meta::define_aggregate.

Example

Run this code

#include <meta>

static_assert(!std::meta::is_data_member_spec(^^int)); // ^^int is not a data member spec

constexpr auto spec = std::meta::data_member_spec(^^int, {.name = "x"});
static_assert(std::meta::is_data_member_spec(spec)); // spec is a data member spec

int main() {}

See also

data_member_spec (C++26)

creates a data member description for use with injected declarations (function)