std::meta::is_bit_field

 

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Defined in header <meta>
consteval bool is_bit_field( std::meta::info r );		(since C++26)

Returns true if r represents a bit-field or a data member description whose bit width is not ⊥. Otherwise returns false.

Parameters

r

-

a reflection value

Return value

true if r represents a bit-field or a data member description of bit-field; otherwise false.

Example

Run this code

#include <meta>

struct A
{
    int a;
    int b:2;
};

static_assert(!std::meta::is_bit_field(^^A::a));
static_assert(std::meta::is_bit_field(^^A::b));


int main() {}

See also

is_nonstatic_data_member (C++26)

checks if reflection represents a non-static data member (function)