Thanks to all for answering,

> Why would there be? Your just asking for a mutable copy of an empty string. 
> It should be equivalent to [[NSMutableString alloc] initWithString:@«  »]

But much slower I expect, since it creates a NSString, takes a mutable copy, 
then implicitly releases the constant empty NSString.

BTW, what’s the difference between [[NSMutableString alloc] init] and 
[[NSMutableString alloc] initWithString:@“”]?

Vincent




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