|  | Home | Libraries | People | FAQ | More | 
Access an element, with bounds checking.
value const& at( std::size_t pos) const;
This function is used to access elements of the underlying array, or throw an exception if the value is not an array.
Constant.
Strong guarantee.
| Name | Description | 
|---|---|
| 
                       | A zero-based array index. | 
            this->as_array().at( pos ).