Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
OFFSETOF(3)		    Library Functions Manual		   OFFSETOF(3)

NAME
       offsetof	-- offset of a structure member

SYNOPSIS
       #include	<stddef.h>

       size_t
       offsetof(type, member);

DESCRIPTION
       The  offsetof() macro expands to	an integer constant expression of type
       size_t and yields the offset, in	bytes, of the field  member  from  the
       start of	the structure type.

       A  compiler error will result if	member is not aligned to a byte	bound-
       ary (i.e. it is a bit-field).

STANDARDS
       The offsetof() macro conforms to	ANSI X3.159-1989 ("ANSI	C89").

FreeBSD	15.0		       February	18, 2010		   OFFSETOF(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=offsetof&sektion=3&manpath=FreeBSD+15.0-RELEASE+and+Ports.quarterly>

home | help