Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...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( string_view key) const;
This function is used to access elements of the underlying object, or throw an exception if the value is not an object.
Constant.
Strong guarantee.
|
Name |
Description |
|---|---|
|
|
The key of the element to find. |
this->as_object().at( key ).