DOKK / manpages / debian 13 / libstdc++-12-doc / std::is_union.3cxx.en
std::is_union< _Tp >(3cxx) std::is_union< _Tp >(3cxx)

std::is_union< _Tp > - is_union

#include <type_traits>

Inherits std::integral_constant< bool, __is_union(_Tp)>.


typedef integral_constant< bool, __v > type
typedef bool value_type


constexpr operator value_type () const noexcept
constexpr value_type operator() () const noexcept


static constexpr bool value

struct std::is_union< _Tp >"is_union

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