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C Unordered_Map Emplace Example
C Unordered_Map Emplace Example. The constructor of the new element (i.e. The insertion only takes place if no element in the container has a key equivalent to the one being emplaced (keys in an unordered_map are unique).

The constructor of the new element (i.e. The insertion only takes place if no other element in the container is equivalent to the one being emplaced (elements in a set container are unique). For a code example, see map::insert.
Inserts A New Element In The Unordered_Map If Its Key Is Unique.
Careful use of emplace allows the new element to be constructed while avoiding unnecessary copy or move operations. Careful use of emplace allows the new element to be constructed while avoiding unnecessary copy or move operations. Pair < const key, t >) is called with exactly the same arguments as.
The Type Of An Iterator For The Controlled Sequence.
The constructor of the new element (i.e. The insertion only takes place if no other element in the container is equivalent to the one being emplaced (elements in a set container are unique). If inserted, this effectively increases the container size by one.
The Insertion Only Takes Place If No Element In The Container Has A Key Equivalent To The One Being Emplaced (Keys In An Unordered_Map Are Unique).
For a code example, see map::insert. Inserts a new element in the set, if unique.this new element is constructed in place using args as the arguments for its construction. If inserted, this effectively increases the container size by one.
This New Element Is Constructed In Place Using Args As The Arguments For The Element's Constructor.
The constructor of the new element (i.e. For insertion of an element constructed in place—that is, no copy or move operations are performed—see unordered_map::emplace and unordered_map::emplace_hint. Pair < const key, t >) is called with exactly the same arguments as.
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