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 the documentation for a snapshot of the master branch, built from commit 579430ad1f.

Return an iterator to the beginning.

const_iterator
begin() const;

If the container is empty, end() is returned.

Constant.

No-throw guarantee.