30 #ifndef _GLIBCXX_MONOSTATE_H
31 #define _GLIBCXX_MONOSTATE_H 1
35 #ifdef __glibcxx_variant
38 #if __cplusplus >= 202002L
42 namespace std _GLIBCXX_VISIBILITY(default)
44 _GLIBCXX_BEGIN_NAMESPACE_VERSION
47 constexpr
bool operator==(monostate, monostate) noexcept {
return true; }
48 #ifdef __cpp_lib_three_way_comparison
49 constexpr strong_ordering
50 operator<=>(monostate, monostate) noexcept {
return strong_ordering::equal; }
52 constexpr
bool operator!=(monostate, monostate) noexcept {
return false; }
53 constexpr
bool operator<(monostate, monostate) noexcept {
return false; }
54 constexpr
bool operator>(monostate, monostate) noexcept {
return false; }
55 constexpr
bool operator<=(monostate, monostate) noexcept {
return true; }
56 constexpr
bool operator>=(monostate, monostate) noexcept {
return true; }
60 struct hash<monostate>
62 #if __cplusplus < 202002L
63 using result_type [[__deprecated__]] = size_t;
64 using argument_type [[__deprecated__]] = monostate;
68 operator()(
const monostate&)
const noexcept
70 constexpr
size_t __magic_monostate_hash = -7777;
71 return __magic_monostate_hash;
75 _GLIBCXX_END_NAMESPACE_VERSION
constexpr bool operator<=(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
constexpr bool operator>=(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
constexpr bool operator<(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
constexpr bool operator>(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
ISO C++ entities toplevel namespace is std.