Le 4 déc. 08 à 16:42, Jerry Krinock a écrit :
I'd like to define a global string constant consisting of two ASCII
start-of-text (STX, 0x02) characters.
The following ^code^ will create such a thing:
NSString* two = [[NSString alloc] initWithFormat:@"%C%C", 0x2,
0x2] ;
and I realize that I could put it in some +initialize method for a
class that was "guaranteed" to be created, but that solution is
rather fragile, non-portable, etc.
I also appreciate that I'm creating an object, but gee it's a really
simple object, and since Xcode can do this:
NSString* const hello = @"Hello" ;
Is there a way to put non-printing characters in a constant string
like that?
Yes, either using octal escape sequence
NSString *two = @"\2\2";
or hexa escape sequence
NSString *two = @"\x2\x2";
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