collate_byname<char>::string_type
collate_byname<char>::do_transform(const char* low, const char* high) const {
size_t n = _Locale_strxfrm(_M_collate, NULL, 0, low, high - low);
// NOT PORTABLE. What we're doing relies on internal details of the
// string implementation. (Contiguity of string elements and presence
// of trailing zero.)
string_type buf(n, 0);
_Locale_strxfrm(_M_collate, &(*buf.begin()), n + 1, low, high - low);
return buf;
}
collate_byname<char>::string_type
collate_byname<char>::do_transform(const char* low, const char* high) const {
size_t n = _Locale_strxfrm(_M_collate,
NULL, 0,
low, high - low);
__vector__<char, allocator<char> > buf(n);
_Locale_strxfrm(_M_collate, &buf.front(), n,
low, high - low);
char& __c1 = *(buf.begin());
char& __c2 = (n == (size_t)-1) ? *(buf.begin() + (high-low-1)) : *(buf.begin() + n);
// char& __c2 = *(buf.begin() + n);
return string_type( &__c1, &__c2 );
}
