protected virtual member function
<locale>
std::collate::do_compare
int do_compare (const char_type* low1, const char_type* high1 const char_type* low2, const char_type* high2) const;
Compare character sequences [virtual]
Virtual protected member function called by collate::compare to compare (collate) character sequences.
Polymorphic derived classes can overwrite the behavior of this function.
See collate::compare for its default behavior in collate.