std::owner_less
Defined in header <memory>
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||
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template
<>
struct owner_less< void > ; |
(since C++17) | |
std::owner_less < void > is a specialization of std::owner_less
Nested types
| Nested type | Definition |
is_transparent
|
unspecified |
Member functions
operator() |
compares its arguments using owner-based semantics (function) |
std::owner_less<void>::operator()
|
template
<
class T, class U >
bool operator(
)
(
const
std::shared_ptr
<T>
& lhs, |
(since C++17) | |
|
template
<
class T, class U >
bool operator(
)
(
const
std::shared_ptr
<T>
& lhs, |
(since C++17) | |
|
template
<
class T, class U >
bool operator(
)
(
const
std::weak_ptr
<T>
& lhs, |
(since C++17) | |
|
template
<
class T, class U >
bool operator(
)
(
const
std::weak_ptr
<T>
& lhs, |
(since C++17) | |
Compares lhs and rhs using owner-based semantics. Effectively calls lhs.owner_before(rhs)
The ordering is strict weak ordering relation.
lhs and rhs are equivalent only if they are both empty or share ownership.
Parameters
| lhs, rhs | - | shared-ownership pointers to compare |
Return value
true if lhs is less than rhs
Notes
| Feature-test macro | Value | Std | Feature |
|---|---|---|---|
__cpp_lib_transparent_operators |
201510L |
(C++17) | Transparent std::owner_less (std::owner_less<void> |
See also
| provides owner-based ordering of shared pointers (public member function of std::shared_ptr<T>) |
|
| provides owner-based ordering of weak pointers (public member function of std::weak_ptr<T>) |