std::meta::is_standard_layout_type
Defined in header <meta> | ||
|---|---|---|
consteval bool is_standard_layout_type( std::meta::info r ); | (since C++26) |
Returns true if r represents a standard-layout type. Otherwise returns false.
Parameters
| r | - | a reflection value |
Return value
true if r represents a standard-layout type; otherwise false.
Exceptions
Throws std::meta::exception if r does not represent a type or type alias.
Example
#include <meta>
struct A { int m; };
static_assert(is_standard_layout_type(^^A));
class B: public A { int m; };
static_assert(!is_standard_layout_type(^^B));
struct C { virtual void foo(); };
static_assert(!is_standard_layout_type(^^C));
int main() {}
See also
|
(C++11) | checks if a type is a standard-layout type (class template) |
|
(C++26) | checks if reflection represents a trivially copyable type (function) |
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