Append to this string the characters from the specified range. Return a reference providing modifiable access to this string. Note that range must meet the requirements of an input range and the values from range must have a type matching or convertible to (template parameter) CHAR_TYPE.
Declared in <bslstl_string.h>
template<class RANGE>
basic_string<char8_t>&
append_range(RANGE&& range);