std::vector<T,Allocator>::at (3) - Linux Manuals

std::vector<T,Allocator>::at: std::vector<T,Allocator>::at

NAME

std::vector<T,Allocator>::at - std::vector<T,Allocator>::at

Synopsis

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

Parameters

pos - position of the element to return

Return value

Reference to the requested element.

Exceptions

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

Complexity

Constant.