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 2024. The current version is 1.90.0.

object::size

object::size

Return the number of elements.

Synopsis

std::size_t
size() const noexcept;

Description

This returns the number of elements in the container.

Complexity

Constant.

Exception Safety

No-throw guarantee.