collate Virtual Functions

Localized implementation functions for public collate member functions.

  int do_compare
  (const charT* low1, const charT* high1,
  const charT* low2, const charT* high2) const;

Implements compare.

  string_type do_transform(const charT* low, const charT* high) 
  const;

Implements transform

  long do_hash(const charT* low, const charT* high) const;

Implements hash.