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std::map<Key,T,Compare,Allocator>::at

From cppreference.com

< cpp‎ | container‎ | map

[edit template]

T& at( const Key& key );	(1)
const T& at( const Key& key ) const;	(2)

Returns a reference to the mapped value of the element with key equivalent to key. If no such element exists, an exception of type std::out_of_range is thrown.

1 Parameters
2 Return value
3 Exceptions
4 Complexity
5 See also

[edit] Parameters

key

the key of the element to find

[edit] Return value

Reference to the mapped value of the requested element

[edit] Exceptions

std::out_of_range if the container does not have an element with the specified key

[edit] Complexity

Logarithmic in the size of the container.

[edit] See also

operator[]

access or insert specified element
(public member function) [edit]

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/container/map/at&oldid=131155"

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