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Posted By

gerhardsletten on 10/18/09


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swapnonil


NSLog and datatype specifiers

 / Published in: Objective C
 

%@ Object

%d, %i signed int %u unsigned int %f float/double %1.2f to controll number of decimals %x, %X hexadecimal int %o octal int %zu size_t %p pointer %e float/double (in scientific notation) %g float/double (as %f or %e, depending on value) %s C string (bytes) %S C string (unichar) %.*s Pascal string (requires two arguments, pass pstr[0] as the first, pstr+1 as the second) %c character %C unichar

%lld long long %llu unsigned long long %Lf long double

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  1. NSLog(@"%@", [NSNumber numberWithInt:i]);
  2.  
  3. %@ Object
  4.  
  5. %d, %i signed int
  6. %u     unsigned int
  7. %f     float/double
  8. %1.2f to controll number of decimals
  9. %x, %X hexadecimal int
  10. %o     octal int
  11. %zu    size_t
  12. %p     pointer
  13. %e     float/double (in scientific notation)
  14. %g     float/double (as %f or %e, depending on value)
  15. %s     C string (bytes)
  16. %S     C string (unichar)
  17. %.*s   Pascal string (requires two arguments, pass pstr[0] as the first, pstr+1 as the second)
  18. %c     character
  19. %C     unichar
  20.  
  21. %lld   long long
  22. %llu   unsigned long long
  23. %Lf    long double

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