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.

value::emplace_null

value::emplace_null

Change the kind to null, discarding the previous contents.

Synopsis

void
emplace_null() noexcept;

Description

The value is replaced with a null, destroying the previous contents.

Complexity

Linear in the size of *this.

Exception Safety

No-throw guarantee.