Replace the substring in the range starting at the specified first position and ending right before the specified last position with the specified replacement string. Return a reference providing modifiable access to this string. The behavior is undefined unless first and last are both within the range [cbegin() .. cend()] and first <= last.
Declared in <bslstl_string.h>
basic_string<wchar_t>&
replace(
const_iterator first,
const_iterator last,
basic_string<wchar_t> const& replacement);