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 develop branch, built from commit 22dca45f4b.

Streams a datetime.

std::ostream&
operator<<(
    std::ostream& os,
    const datetime& v);

This function works for invalid datetimes, too.