string::string (9 of 12 overloads)

Constructor.

explicit
string(
    string&& other,
    storage_ptr sp);

Construct the contents with those of other using move semantics.

If *other.storage() == *sp, ownership of the underlying memory is transferred in constant time, with no possibility of exceptions. After construction, the moved-from string behaves as if newly constructed with its current boost::container::pmr::memory_resource. Otherwise,
If *other.storage() != *sp, a copy of the characters in other is made. In this case, the moved-from string is not changed.

Constant or linear in other.size().

Strong guarantee. Calls to memory_resource::allocate may throw.

Name	Description
`other`	The string to assign from.
`sp`	An optional pointer to the `boost::container::pmr::memory_resource` to use. The container will acquire shared ownership of the memory resource. The default argument for this parameter is `{}`.

Boost C++ Libraries