CODEWITHSUNDEEP
iphonensstringoctal
user2444342
user2444342

Reputation: 159

Convert NSString with octal numbers to decimal int

I have an NSString with octal numbers:

NSString* octal = @"247";

I'd like to convert this to an integer in base 10.

If this were a hex number I could use NSScanner scanHex method, but there is no scanOct...

Thanks!

Upvotes: 0

Views: 128

Answers (1)

Nikolai Ruhe
Nikolai Ruhe

Reputation: 81868

The standard C library has conversion functions for this purpose:

NSString* octal = @"247";

unsigned long value;
sscanf([octal UTF8String], "%lo", &value);

NSString* decimal = [@(value) stringValue];

decimal now contains the converted base 10 value.

Upvotes: 1

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