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.

Subtract one time from another.

static duration_type subtract(
    const time_type & t1,
    const time_type & t2);