Assign to this string the value of the specified null-terminated rhs string (of length CHAR_TRAITS::length(characterString)), and return a reference providing modifiable access to this string.
rhs
CHAR_TRAITS::length(characterString)
Declared in <bslstl_string.h>
<bslstl_string.h>
basic_string<wchar_t>& operator=(wchar_t const* rhs);