C Language and Libraries Help (clang.hlp) (Table of Contents; Topic list)
Integer-to-ASCII Conversion Functions
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─────Run-Time Library───────────────────────────────────────────────────────
 
  Include:   <stdlib.h>
 
  Syntax:    char *_itoa( int value, char *string, int radix );
             char *_ltoa( long value, char *string, int radix );
             char *_ultoa( unsigned long value, char *string, int radix );
 
  Returns:   a pointer to <string>.
 
  See also:  atoi, strtol, _gcvt, sprintf
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