std::vector::at

From cppreference.com
< cpp‎ | container‎ | vector

reference       at( size_type pos );
const_reference at( size_type pos ) const;

Returns a reference to the element at specified location pos, with bounds checking.

If pos not within the range of the container, an exception of type std::out_of_range is thrown.

Contents

[edit] Parameters

pos - position of the element to return

[edit] Return value

Reference to the requested element.

[edit] Exceptions

std::out_of_range if !(pos < size()).

[edit] Complexity

Constant.

[edit] See also

access specified element
(public member function)