std::multiset<Key,Compare,Allocator>:: emplace_hint
Sequence | ||||
(C++11)
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(C++26)
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(C++11)
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Associative | ||||
Unordered associative | ||||
(C++11)
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(C++11)
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(C++11)
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(C++11)
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Adaptors | ||||
(C++23)
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(C++23)
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(C++23)
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(C++23)
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Views | ||||
(C++20)
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(C++23)
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Tables | ||||
Iterator invalidation | ||||
Member function table | ||||
Non-member function table |
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Deduction guides (C++17) |
template
<
class
...
Args
>
iterator emplace_hint ( const_iterator hint, Args && ... args ) ; |
(since C++11) | |
Inserts a new element into the container as close as possible to the position just before hint .
The constructors of the key and mapped value are called with exactly the same arguments as supplied to the function, forwarded with std:: forward < Args > ( args ) ... .
No iterators or references are invalidated.
Parameters
hint | - | iterator to the position before which the new element will be inserted |
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 in general, but amortized constant if the new element is inserted just before hint .
Example
This section is incomplete
Reason: no example |
See also
(C++11)
|
constructs element in-place
(public member function) |
inserts elements
or nodes
(since C++17)
(public member function) |