[#bsl-basic_string-0f3-assign-0a]
= xref:bsl.adoc[bsl]::xref:bsl/basic_string-0f3.adoc[basic_string<char32_t>]::assign
:relfileprefix: ../../
:mrdocs:

Assign to this string the value of the specified `replacement` string, propagate to this object the allocator of `replacement` if the `ALLOCATOR` type has trait `propagate_on_container_move_assignment`, and return a reference providing modifiable access to this string. The content of `replacement` is moved (in constant time) to this string if `get_allocator() == rhs.get_allocator()` (after accounting for the aforementioned trait). `replacement` is left in a valid but unspecified state. Note that this method has exactly the same behavior as the corresponding `operator=`.

== Synopsis

Declared in `<bslstl_string.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-0faf.adoc[basic_string<char32_t>]&
assign(xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<basic_string<char32_t>>] replacement) noexcept(false);
----


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