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

Constructor.

value(
    storage_ptr sp);

The constructed value is null, using the specified memory_resource.

Constant.

No-throw guarantee.

Name	Description
`sp`	A pointer to the `memory_resource` to use. The container will acquire shared ownership of the memory resource.