...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Access an element, with bounds checking.
value
const& at(std::size_t
pos,boost::source_location
const& loc = BOOST_CURRENT_LOCATION) const&;
Returns a reference to the element specified at location pos
, with bounds checking. If pos
is not within the range of the
container, an exception of type boost::system::system_error
is thrown.
Constant.
Name |
Description |
---|---|
|
A zero-based index. |
|
|
Type |
Thrown On |
---|---|
boost::system::system_error |
|