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

From cppreference.com
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_const s, 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_const s.
7-10) Ordered comparison for two propagate_const s.
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_const s 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_