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std::map::at

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< cpp‎ | container‎ | map
Revision as of 20:04, 2 November 2012 by P12bot (Talk | contribs)

T& at( const Key& key );
(1) (since C++11)
const T & at( const Key& key ) const;
(2) (since C++11)

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.

Contents

Parameters

key - the key of the element to find

Return value

Reference to the mapped value of the requested element

Exceptions

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

Complexity

Logarithmic in the size of the container.

See also

access specified element
(public member function) [edit]