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 a2b80500d6.

Retrieves the hour component.

constexpr std::uint8_t
hour() const noexcept;

If this->valid() == true, this value is within the [0, 23] range.

No-throw guarantee.