20     typedef std::basic_string<utf8_char> utf8_string;  typedef
23     inline utf8_string to_utf8(Char value)  in to_utf8()
26         utf8_string result;  in to_utf8()
27         typedef std::back_insert_iterator<utf8_string> insert_iter;  in to_utf8()
36     inline utf8_string to_utf8(Char const* str)  in to_utf8()
39         utf8_string result;  in to_utf8()
40         typedef std::back_insert_iterator<utf8_string> insert_iter;  in to_utf8()
50     inline utf8_string
54         utf8_string result;  in to_utf8()
55         typedef std::back_insert_iterator<utf8_string> insert_iter;  in to_utf8()
68     inline utf8_string to_utf8(wchar_t value)  in to_utf8()
70         utf8_string result;  in to_utf8()
71         typedef std::back_insert_iterator<utf8_string> insert_iter;  in to_utf8()
81     inline utf8_string to_utf8(wchar_t const* str)  in to_utf8()
83         utf8_string result;  in to_utf8()
84         typedef std::back_insert_iterator<utf8_string> insert_iter;  in to_utf8()
97     inline utf8_string