Re: Converting four char code
Re: Converting four char code
- Subject: Re: Converting four char code
- From: Eric Blairs <email@hidden>
- Date: Mon, 10 Feb 2003 23:21:56 -0500
On 2/11/03 at 1:37 PM, Greg Hulands <email@hidden> wrote:
>
Hi,
>
Can anyone tell me how to convert a four-char code into 4 chars?
>
>
eg.
>
>
'APPL' into 'A' 'P' 'P' 'L'
>
>
I've seen a number of these floating around, but the one I got in some of my
code is from Andrew Stone's Cocoa Files:
- (NSString *)stringFromCode:(unsigned long)code {
unsigned char c[5];
c[0] = code >> 24;
c[1] = (code >> 16) & 0xff;
c[2] = (code >> 8) & 0xff;
c[3] = code & 0xff;
c[4] = '\0'; // don't forget to terminate the cstring!
return [NSString stringWithCString:c];
}
and the corresponding function, just for the sake of completeness
- (unsigned long)codeFromString:(NSString *)fourLetterWord {
unsigned const char *c = [fourLetterWord cString];
if ([fourLetterWord cStringLength] == 4) {
return ((c[0]<<24) + (c[1]<<16) + (c[2]<<8) + c[3]);
}
return 0;
}
<
http://www.stone.com/The_Cocoa_Files/Crossing_the_Line.html>
I'm not using the latter function, but the former seems to be working properly
for me.
--Eric
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.