operator==,!=,<,<=,>,>=(std::experimental::propagate_const)

 

C++

Compiler support

Freestanding and hosted

Language

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Technical specifications

Symbols index

External libraries

 

Technical specifications

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals TS v2)

Library fundamentals 3 (library fundamentals TS v3)

Extensions for parallelism (parallelism TS)

Extensions for parallelism 2 (parallelism TS v2)

Extensions for concurrency (concurrency TS)

Extensions for concurrency 2 (concurrency TS v2)

Concepts (concepts TS)

Ranges (ranges TS)

Reflection (reflection TS)

Mathematical special functions (special functions TR)

 

Library fundamentals v2

experimental::propagate_const

experimental::not_fn

experimental::observer_ptr

experimental::make_array

experimental::to_array

experimental::ostream_joiner

experimental::gcd

experimental::lcm

experimental::source_location

experimental::randint

detection idiom

uniform container erasure

logical operator type traits

 

std::experimental::propagate_const

Member functions

propagate_const::propagate_const

propagate_const::operator=

propagate_const::swap

Observers

propagate_const::get

propagate_const::operator bool

propagate_const::operator*propagate_const::operator->

propagate_const::operator element_type*propagate_const::operator const element_type*

Non-member functions

operator==operator!=operator<operator>operator<=operator>operator>=

swap

get_underlying

Helper classes

std::hash

std::equal_tostd::not_equal_tostd::lessstd::greaterstd::less_equalstd::greater_equal

 

template <class T> constexpr bool operator==(const propagate_const<T>& pt, nullptr_t);	(1)	(library fundamentals TS v2)
template <class T> constexpr bool operator==(nullptr_t, const propagate_const<T>& pt);	(2)	(library fundamentals TS v2)
template <class T> constexpr bool operator!=(const propagate_const<T>& pt, nullptr_t);	(3)	(library fundamentals TS v2)
template <class T> constexpr bool operator!=(nullptr_t, const propagate_const<T>& pt);	(4)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator==(const propagate_const<T>& pt, const propagate_const<U>& pu);	(5)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator!=(const propagate_const<T>& pt, const propagate_const<U>& pu);	(6)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator<(const propagate_const<T>& pt, const propagate_const<U>& pu);	(7)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator>(const propagate_const<T>& pt, const propagate_const<U>& pu);	(8)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator<=(const propagate_const<T>& pt, const propagate_const<U>& pu);	(9)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator>=(const propagate_const<T>& pt, const propagate_const<U>& pu);	(10)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator==(const propagate_const<T>& pt, const U& u);	(11)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator!=(const propagate_const<T>& pt, const U& u);	(12)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator==(const T& t, const propagate_const<U>& pu);	(13)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator!=(const T& t, const propagate_const<U>& pu);	(14)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator<(const propagate_const<T>& pt, const U& u);	(15)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator>(const propagate_const<T>& pt, const U& u);	(16)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator<=(const propagate_const<T>& pt, const U& u);	(17)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator>=(const propagate_const<T>& pt, const U& u);	(18)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator<(const T& t, const propagate_const<U>& pu);	(19)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator>(const T& t, const propagate_const<U>& pu);	(20)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator<=(const T& t, const propagate_const<U>& pu);	(21)	(library fundamentals TS v2)
template <class T, class U> constexpr bool operator>=(const T& t, const propagate_const<U>& pu);	(22)	(library fundamentals TS v2)

Compares the wrapped pointers of two propagate_consts, or between a propagate_const and nullptr, or between a propagate_const and another object.

1-4) Equality comparison for a propagate_const and nullptr.

5-6) Equality comparison for two propagate_consts

7-10) Ordered comparison for two propagate_consts

11-14) Equality comparison for a propagate_const and another object.

15-22) Ordered comparison for a propagate_const and another object.

Parameters

pt, pu	-	propagate_consts to compare
t, u	-	other objects to compare

Return value

Let t_ denote the underlying pointer-like object wrapped by a propagate_const.

1) pt.t_ == nullptr

2) nullptr == pt.t_

3) pt.t_ != nullptr

4) nullptr != pt.t_

5) pt.t_ == pu.t_

6) pt.t_ != pu.t_

7) pt.t_ < pu.t_

8) pt.t_ > pu.t_

9) pt.t_ <= pu.t_

10) pt.t_ >= pu.t_

11) pt.t_ == u

12) pt.t_ != u

13) t == pu.t_

14) t != pu.t_

15) pt.t_ < u

16) pt.t_ > u

17) pt.t_ <= u

18) pt.t_ >= u

19) t < pu.t_

20) t > pu.t_

21) t <= pu.t_

22) t >= pu.t_