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 */ 11