std::flat_multiset<Key,Compare,KeyContainer>:: emplace
|
template
<
class
...
Args
>
iterator emplace ( Args && ... args ) ; |
(since C++23)
(constexpr since C++26) |
|
Inserts a new element into the container constructed in-place with the given args .
First, initializes an object t of type
value_type
with
std::
forward
<
Args
>
(
args
)
...
, then inserts
t
as if by
auto it = ranges::upper_bound(c, t, compare); c.insert(it, std::move(t));
This overload participates in overload resolution only if std:: is_constructible_v < value_type, Args... > is true .
If
value_type
is not
EmplaceConstructible
into
flat_multiset
from
args
, the behavior is undefined.
| Information on iterator invalidation is copied from here |
Contents |
Parameters
| args | - | arguments to forward to the constructor of the element |
Return value
An iterator to the inserted element.
Exceptions
If an exception is thrown for any reason, this function has no effect ( strong exception safety guarantee ).
Complexity
Logarithmic in the size of the container.
Notes
Careful use of
emplace
allows the new element to be constructed while avoiding unnecessary copy or move operations.
Example
|
This section is incomplete
Reason: no example |
See also
|
constructs elements in-place using a hint
(public member function) |
|
|
inserts elements
(public member function) |