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 an older version of Boost and was released in 2022. The current version is 1.89.0.

object::empty

object::empty

Return whether there are no elements.

Synopsis

bool
empty() const;

Description

Returns true if there are no elements in the container, i.e. size() returns 0.

Complexity

Constant.

Exception Safety

No-throw guarantee.