Manual Pages for UNIX Operating System command usage for man stddef

Headers                                           stddef.h(3HEAD)



NAME
     stddef.h, stddef - standard type definitions

SYNOPSIS
     #include 


DESCRIPTION
     The  header defines the following macros:

     NULL

         Null pointer constant.


     offsetof(type, member-designator)

         Integer constant expression of type size_t, the value of
         which  is  the  offset  in bytes to the structure member
         (member-designator), from the beginning of its structure
         (type).



     The  header defines the following types:

     ptrdiff_t    Signed integer type of the result of  subtract-
                  ing two pointers.


     wchar_t      Integer  type  whose  range   of   values   can
                  represent distinct wide-character codes for all
                  members of the largest character set  specified
                  among  the locales supported by the compilation
                  environment: the null character  has  the  code
                  value 0 and each member of the portable charac-
                  ter set has a code value  equal  to  its  value
                  when  used  as the lone character in an integer
                  character constant.


     size_t       Unsigned integer type  of  the  result  of  the
                  sizeof operator.



     The implementation supports one or more programming environ-
     ments  in which the widths of ptrdiff_t, size_t, and wchar_t
     are no greater than the width of type  long.  The  names  of
     these  programming  environments  can  be obtained using the
     confstr(3C) function or the getconf(1) utility.




SunOS 5.11          Last change: 10 Sep 2004                    1






Headers                                           stddef.h(3HEAD)



ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | Standard                    | See standards(5).           |
    |_____________________________|_____________________________|


SEE ALSO
     getconf(1),  confstr(3C),  types.h(3HEAD),   wchar.h(3HEAD),
     attributes(5), standards(5)





































SunOS 5.11          Last change: 10 Sep 2004                    2