D2.0: an example of use-case for casting invariant away

[Daniel Keep]

In addition to Brad's response, note that this is *not* "casting
invariant away".  You are *adding* invariant[1].  This might be more
accurate:

extern(C) void initSomeSubsystem(char * initializationString);

int main()
{
    invariant char * initString = "...";
    // Cast away invariantness of initString so we can pass it to the C
    // function; be it on your head if the function tries to change it!
    initSomeSubsystem( cast(char*)initString );
}

	-- Daniel

[1] Although it's already there, so it wouldn't have any effect, I don't
think.