U+007E and U+02DC

[Patrick Andries]

The Unicode Standard 3.0 (page 149) says that U+007E can be used as a
Spacing Clone of Combining Tilde. But isn't it this the function of U+02DC
(the so called "SMALL TILDE") ? Why suggest this usage then and not point to
U+02DC ?

Could one say (as some typographers see it) that  U+007E should form a kind
of logical pair with the dash (same position, same width, similar function
(see dictionaries)) ?

P. Andries
Saint-Hubert (Québec)