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 68cc668162.

Remove the last character.

constexpr void
pop_back();

Removes a character from the end of the string.

not empty()