INTTYPES(3)						   BSD Library Functions Manual 					       INTTYPES(3)

NAME

     inttypes -- standard fixed-size integer types

SYNOPSIS

     #include <inttypes.h>

DESCRIPTION

     The <inttypes.h> header describes a set of format specifier macros aimed to increase portability both within and across operating systems.
     It includes the <stdint.h> header and extends it with additional facilities.

     Each of the following macros expand to a character string literal containing the format specifier suitable for use within the format argument
     of a formatted I/O function such as printf(3).  Each macro contains an identifier (PRI or SCN), a conversion specifier, and a possible length
     modifier.

     The length modifier follows the integer types described in stdint(3):

	   int8_t			  uint8_t
	   int16_t			  uint16_t
	   int32_t			  uint32_t
	   int64_t			  uint64_t
	   int_least8_t 		  uint_least8_t
	   int_least16_t		  uint_least16_t
	   int_least32_t		  uint_least32_t
	   int_least64_t		  uint_least64_t
	   int_fast8_t			  uint_fast8_t
	   int_fast16_t 		  uint_fast16_t
	   int_fast32_t 		  uint_fast32_t
	   int_fast64_t 		  uint_fast64_t
	   intmax_t			  uintmax_t
	   intptr_t			  uintptr_t

     The following format specifiers are defined for the fprintf(3) and fscanf(3) families, respectively:

	   PRI?8			  SCN?8
	   PRI?16			  SCN?16
	   PRI?32			  SCN?32
	   PRI?64			  SCN?64
	   PRI?LEAST8			  SCN?LEAST8
	   PRI?LEAST16			  SCN?LEAST16
	   PRI?LEAST32			  SCN?LEAST32
	   PRI?LEAST64			  SCN?LEAST64
	   PRI?FAST8			  SCN?FAST8
	   PRI?FAST16			  SCN?FAST16
	   PRI?FAST32			  SCN?FAST32
	   PRI?FAST64			  SCN?FAST64
	   PRI?MAX			  SCN?MAX
	   PRI?PTR			  SCN?PTR

     The available conversion specifiers, ``?'' in above, are d and i for signed integers and o, u, x, and X for unsigned integers.  The X is not
     available for the fscanf(3) family.  Without the length modifier these would correspond with %d, %i, %o, %u, %x, and %X, respectively.

EXAMPLES

     The following example demonstrates typical usage:

	   uint64_t i = 123;

	   ...

	   (void)printf("i = %"PRIu64"
", i);

SEE ALSO

     printf(3), scanf(3), stdint(3)

STANDARDS

     The <inttypes.h> header conforms to ISO/IEC 9899:1999 (``ISO C99'') and IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY

     The <inttypes.h> header was first introduced in NetBSD 1.6.

BSD
								  March 21, 2010							       BSD