operator==,!=,<,<=,>,>=(std::experimental::observer_ptr)
From cppreference.com
< cpp | experimental | observer ptr
|
template
<
class W1, class W2 >
bool operator== ( const observer_ptr<W1> & p1, const observer_ptr<W2> & p2 ) ; |
(1) | (library fundamentals TS v2) |
|
template
<
class W1, class W2 >
bool operator! = ( const observer_ptr<W1> & p1, const observer_ptr<W2> & p2 ) ; |
(2) | (library fundamentals TS v2) |
|
template
<
class W >
bool operator== ( const observer_ptr<W> & p, std::nullptr_t ) noexcept ; |
(3) | (library fundamentals TS v2) |
|
template
<
class W >
bool operator== ( std::nullptr_t, const observer_ptr<W> & p ) noexcept ; |
(4) | (library fundamentals TS v2) |
|
template
<
class W >
bool operator! = ( const observer_ptr<W> & p, std::nullptr_t ) noexcept ; |
(5) | (library fundamentals TS v2) |
|
template
<
class W >
bool operator! = ( std::nullptr_t, const observer_ptr<W> & p ) noexcept ; |
(6) | (library fundamentals TS v2) |
|
template
<
class W1, class W2 >
bool operator< ( const observer_ptr<W1> & p1, const observer_ptr<W2> & p2 ) ; |
(7) | (library fundamentals TS v2) |
|
template
<
class W1, class W2 >
bool operator> ( const observer_ptr<W1> & p1, const observer_ptr<W2> & p2 ) ; |
(8) | (library fundamentals TS v2) |
|
template
<
class W1, class W2 >
bool operator<= ( const observer_ptr<W1> & p1, const observer_ptr<W2> & p2 ) ; |
(9) | (library fundamentals TS v2) |
|
template
<
class W1, class W2 >
bool operator>= ( const observer_ptr<W1> & p1, const observer_ptr<W2> & p2 ) ; |
(10) | (library fundamentals TS v2) |
Compares the pointer values of two observer_ptrs, or an observer_ptr and nullptr.
1,2) Equality comparison for two
observer_ptrs.3-6) Equality comparison for an
observer_ptr and nullptr.7-10) Ordered comparison for two
observer_ptrs.Parameters
| p, p1, p2 | - | observer_ptrs to compare
|
Return value
1)
p1.get() == p2.get()
2) !(p1 == p2)
3,4) !p
5,6) (bool)p
7)
std::less
<W3>
(
)
(p1.get
(
), p2.get
(
)
)
, where
W3 is the composite pointer type of W1* and W2*
8) p2 < p1
9) !(p2 < p1)
10) !(p1 < p2)