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
This is an older version of Boost and was released in 2023. The current version is 1.89.0.
Remove all fields from the container.
void clear();
All references, pointers, or iterators referring to contained elements are invalidated. All past-the-end iterators are also invalidated.
std::distance(this->begin(), this->end()) == 0