Re: GRegex

[Havoc Pennington <hp redhat com>]

If the regex object is immutable, language bindings can treat it as a 
"value object" (like a string or GdkColor or GdkRectangle) even though 
it's refcounted for efficiency. Also immutable objects can be shared 
among threads without locking.

A GObject on the other hand is never immutable since the GObject base 
class has post-construct-modifiable state.

Havoc