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inttypes.h (3)
  • >> inttypes.h (3) ( Solaris man: Библиотечные вызовы )
  • inttypes.h (3) ( POSIX man: Библиотечные вызовы )
  •  

    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 corresponding 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 operating 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 portability 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, "\n", i);
        return 0;
    }
    

     

    ATTRIBUTES

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

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityStandard

     

    SEE ALSO

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


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    USAGE
    EXAMPLES
    ATTRIBUTES
    SEE ALSO


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