inttypes.h(3HEAD)						      Headers							 inttypes.h(3HEAD)

NAME

       inttypes.h, inttypes - fixed size integer types

SYNOPSIS

       #include <inttypes.h>

DESCRIPTION

       The <inttypes.h> header includes the <stdint.h> header.

       The <inttypes.h> header includes a definition of the following type:

       imaxdiv_t    structure type that is the type of the value returned by the imaxdiv() function.

       The  following  macros  are  defined.  Each expands to a character string literal containing a conversion specifier, possibly modified by a
       length modifier, suitable for use within the format argument of a formatted input/output function when converting the corresponding integer
       type.  These  macros  have  the general form of PRI (character string literals for the fprintf() and fwprintf() family of functions) or SCN
       (character string literals for the fscanf() and fwscanf() family of functions), followed by the conversion specifier, followed  by  a  name
       corresponding  to  a  similar  type  name in <stdint.h>. In these names, N represents the width of the type as described in <stdint.h>. For
       example, PRIdFAST32 can be used in a format string to print the value of an integer of type int_fast32_t.

       The fprintf() macros for signed integers are:

	 PRIdN	PRIdLEASTN  PRIdFASTN  PRIdMAX	PRIdPTR
	 PRIiN	PRIiLEASTN  PRIiFASTN  PRIiMAX	PRIiPTR

       The fprintf() macros for unsigned integers are:

	 PRIoN	 PRIoLEASTN  PRIoFASTN	PRIoMAX  PRIoPTR
	 PRIuN	 PRIuLEASTN  PRIuFASTN	PRIuMAX  PRIuPTR
	 PRIxN	 PRIxLEASTN  PRIxFASTN	PRIxMAX  PRIxPTR
	 PRIXN	 PRIXLEASTN  PRIXFASTN	PRIXMAX  PRIXPTR

       The fscanf() macros for signed integers are:

	 SCNdN	SCNdLEASTN  SCNdFASTN  SCNdMAX	SCNdPTR
	 SCNiN	SCNiLEASTN  SCNiFASTN  SCNiMAX	SCNiPTR

       The fscanf() macros for unsigned integers are:

	 SCNoN	SCNoLEASTN  SCNoFASTN  SCNoMAX	SCNoPTR
	 SCNuN	SCNuLEASTN  SCNuFASTN  SCNuMAX	SCNuPTR
	 SCNxN	SCNxLEASTN  SCNxFASTN  SCNxMAX	SCNxPTR

       For each type that the implementation provides in <stdint.h>, the corresponding fprintf() and  fwprintf() macros must be defined. The  cor-
       responding fscanf() and fwscanf() macros must be defined as well, unless the implementation does not have a suitable modifier for the type.

USAGE

       The  purpose of <inttypes.h> is to provide a set of integer types whose definitions are consistent across machines and independent of oper-
       ating systems and other implementation idiosyncrasies. It defines, with a typedef, integer types of various sizes. Implementations are free
       to typedef them as ISO C standard integer types or extensions that they support. Consistent use of this header greatly increases the porta-
       bility of applications across platforms.

EXAMPLES

       Example 1 Use of Macro

       The following code uses one of the macros available through <inttypes.h>.

	 #include <inttypes.h>
	 #include <wchar.h>
	 int main(void)
	 {
	      uintmax_t i = UINTMAX_MAX; // This type always exists.
	      wprintf("The largest integer value is %020"
		   PRIxMAX, "
", i);
	      return 0;
	 }

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       imaxdiv(3C), attributes(5), standards(5)

SunOS 5.11							    10 Sep 2004 						 inttypes.h(3HEAD)