src/base/cl_offsetof.h

   1 // offsetof() and friends
   2
   3 #ifndef _CL_OFFSETOF_H
   4 #define _CL_OFFSETOF_H
   5
   6 #undef offsetof
   7 #if defined(__GNUG__)
   8   #define offsetof(type,ident)  ((long)&(((type*)1)->ident)-1)
   9 #else
  10   #define offsetof(type,ident)  ((long)&(((type*)0)->ident))
  11 #endif
  12 #define offsetofa(type,ident)  offsetof(type,ident[0])
  13
  14 #endif /* _CL_OFFSETOF_H */