nestegg/halloc/src/macros.h

   1 /*
   2  *      Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
   3  *
   4  *      Hierarchical memory allocator, 1.2.1
   5  *      http://swapped.cc/halloc
   6  */
   7
   8 /*
   9  *      The program is distributed under terms of BSD license.
  10  *      You can obtain the copy of the license by visiting:
  11  *
  12  *      http://www.opensource.org/licenses/bsd-license.php
  13  */
  14
  15 #ifndef _LIBP_MACROS_H_
  16 #define _LIBP_MACROS_H_
  17
  18 #include <stddef.h>  /* offsetof */
  19
  20 /*
  21         restore pointer to the structure by a pointer to its field
  22  */
  23 #define structof(p,t,f) ((t*)(- offsetof(t,f) + (char*)(p)))
  24
  25 /*
  26  *      redefine for the target compiler
  27  */
  28 #ifdef _WIN32
  29 #define static_inline static __inline
  30 #else
  31 #define static_inline static __inline__
  32 #endif
  33
  34
  35 #endif
  36