CODEWITHSUNDEEP
objective-cnsstringhex
pseudopeach
pseudopeach

Reputation: 1475

Strange hex formatting in NSString

Try this:

unsigned long long int N; = 23229877463LL;
NSString* s = [NSString stringWithFormat:@"dec:%qi, hex:%qX",N,N];

NSLog(@"output: %@",s);

output: dec:23229877460, hex:689BCCD400000005

What's up with the 00000005??? In mySQL, hex(23229877460) = 5689BCCD4. Also, every other language seems to do this correctly. A 16 digit long hex is like 4 gazillion (16^16), right?

How can I get objective-c to format hex numbers that other languages can understand?

Upvotes: 0

Views: 2370

Answers (1)

bbum
bbum

Reputation: 162712

After fixing the spurious ; to yield:

unsigned long long int N = 23229877463LL;
NSString* s = [NSString stringWithFormat:@"dec:%qi, hex:%qX",N,N];

NSLog(@"output: %@",s);

The code works exactly as expected:

2011-01-09 10:46:16.236 dfjkdfkjfdjkfd[25716:a0f] output: dec:23229877463, hex:5689BCCD7

There is something else wrong. You'll need to post more code. The line used to compile the file would probably be helpful, too.

And for giggles:

unsigned long long int N = 23229877460LL;
NSString* s = [NSString stringWithFormat:@"dec:%qi, hex:%qX",N,N];
2011-01-09 10:49:10.425 dfjkdfkjfdjkfd[25755:a0f] output: dec:23229877460, hex:5689BCCD4

Upvotes: 3

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