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 2021. The current version is 1.91.0.
Return a reference to an object, changing the kind and
replacing the contents.
object& emplace_object();
The contents are replaced with an empty object using the current memory_resource.
All previously obtained iterators and references obtained beforehand are
invalidated.
Linear in the size of *this.
No-throw guarantee.