tools/include/linux/bug.h

   1 #ifndef _TOOLS_PERF_LINUX_BUG_H
   2 #define _TOOLS_PERF_LINUX_BUG_H
   3
   4 /* Force a compilation error if condition is true, but also produce a
   5    result (of value 0 and type size_t), so the expression can be used
   6    e.g. in a structure initializer (or where-ever else comma expressions
   7    aren't permitted). */
   8 #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
   9
  10 #endif  /* _TOOLS_PERF_LINUX_BUG_H */