...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Request the removal of unused capacity.
void shrink_to_fit() noexcept;
This performs a non-binding request to reduce the capacity to the current size. The request may or may not be fulfilled. If reallocation occurs, all iterators including any past-the-end iterators, and all references to the elements are invalidated. Otherwise, no iterators or references are invalidated.
At most, linear in size()
.
No-throw guarantee.