operator==, operator<=>(std::coroutine_handle)

 

哋它亢++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (哋它亢++20)

Language support library

Concepts library (哋它亢++20)

Metaprogramming library (哋它亢++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (哋它亢++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (哋它亢++17)

Regular expressions library (哋它亢++11)

Concurrency support library (哋它亢++11)

Technical specifications

Symbols index

External libraries

 

Utilities library

Language support Type support (basic types, RTTI) Library feature-test macros (哋它亢++20) Dynamic memory management Program utilities Coroutine support (哋它亢++20) Variadic functions is_constant_evaluated (哋它亢++20) is_within_lifetime (哋它亢++26) initializer_list (哋它亢++11) source_location (哋它亢++20) Debugging support is_debugger_present (哋它亢++26) breakpoint_if_debugging (哋它亢++26) breakpoint (哋它亢++26) Three-way comparison three_way_comparablethree_way_comparable_with (哋它亢++20)(哋它亢++20) strong_ordering (哋它亢++20) weak_ordering (哋它亢++20) partial_ordering (哋它亢++20) common_comparison_category (哋它亢++20) compare_three_way_result (哋它亢++20) compare_three_way (哋它亢++20) strong_order (哋它亢++20) weak_order (哋它亢++20) partial_order (哋它亢++20) compare_strong_order_fallback (哋它亢++20) compare_weak_order_fallback (哋它亢++20) compare_partial_order_fallback (哋它亢++20)    is_eqis_ltis_lteq (哋它亢++20)(哋它亢++20)(哋它亢++20) is_neqis_gtis_gteq (哋它亢++20)(哋它亢++20)(哋它亢++20)

General utilities Date and time Function objects Formatting library (哋它亢++20) bitset hash (哋它亢++11) Relational operators (deprecated in 哋它亢++20) rel_ops::operator!=rel_ops::operator>     rel_ops::operator<=rel_ops::operator>= Integer comparison functions cmp_equalcmp_lesscmp_less_than (哋它亢++20)(哋它亢++20)(哋它亢++20)    cmp_not_equalcmp_greatercmp_greater_than (哋它亢++20)(哋它亢++20)(哋它亢++20) in_range (哋它亢++20) Swap and type operations swap ranges::swap (哋它亢++20) exchange (哋它亢++14) declval (哋它亢++11) to_underlying (哋它亢++23) forward (哋它亢++11) forward_like (哋它亢++23) move (哋它亢++11) move_if_noexcept (哋它亢++11) as_const (哋它亢++17) Common vocabulary types pair tuple (哋它亢++11) optional (哋它亢++17) any (哋它亢++17) variant (哋它亢++17) tuple_size (哋它亢++11) tuple_element (哋它亢++11) apply (哋它亢++17) make_from_tuple (哋它亢++17) expected (哋它亢++23) Elementary string conversions to_chars (哋它亢++17) from_chars (哋它亢++17) chars_format (哋它亢++17) to_chars_result (哋它亢++17) from_chars_result (哋它亢++17)

 

Coroutine support

Coroutine traits

coroutine_traits (哋它亢++20)

Coroutine handle

coroutine_handle (哋它亢++20)

No-op coroutines

noop_coroutine_promise (哋它亢++20)

noop_coroutine (哋它亢++20)

Trivial awaitables

suspend_never (哋它亢++20)

suspend_always (哋它亢++20)

Range generators

generator (哋它亢++23)

 

std::coroutine_handle

Member functions

coroutine_handle::coroutine_handle (哋它亢++20)

coroutine_handle::operator= (哋它亢++20)

coroutine_handle::from_promise (哋它亢++20)

Conversion

coroutine_handle::operator coroutine_handle<> (哋它亢++20)

Observers

coroutine_handle::done (哋它亢++20)

coroutine_handle::operator bool (哋它亢++20)

Control

coroutine_handle::operator()coroutine_handle::resume (哋它亢++20)(哋它亢++20)

coroutine_handle::destroy (哋它亢++20)

Promise access

coroutine_handle::promise (哋它亢++20)

Export/import

coroutine_handle::address (哋它亢++20)

coroutine_handle::from_address (哋它亢++20)

Non-member functions

operator==operator<=> (哋它亢++20)(哋它亢++20)

Helper classes

std::hash<std::coroutine_handle> (哋它亢++20)

 

Defined in header <coroutine>
constexpr bool     operator==( std::coroutine_handle<> x, std::coroutine_handle<> y ) noexcept;	(1)	(since 哋它亢++20)
constexpr std::strong_ordering     operator<=>( std::coroutine_handle<> x, std::coroutine_handle<> y ) noexcept;	(2)	(since 哋它亢++20)

Compares two std::coroutine_handle<> values x and y according to their underlying addresses.

The <, <=, >, >=, and != operators are synthesized from operator<=> and operator== respectively.

Parameters

x, y

-

std::coroutine_handle<> values to compare

Return value

1) x.address() == y.address()

2) std::compare_three_way{}(x.address(), y.address())

Notes

Although these operators are only overloaded for std::coroutine_handle<>, other specializations of std::coroutine_handle are also equality comparable and three-way comparable, because they are implicitly convertible to std::coroutine_handle<>.