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 2daa88693b.

Returns metadata for this resultset.

metadata_collection_view
meta() const noexcept;

this->has_value() == true

No-throw guarantee.

The returned reference and any other references obtained from it are valid as long as the object that *this points to is alive.

Constant.