#ifndef _NBMISC_H_
#define _NBMISC_H_


/* Can be used in conditions.
    * See http://kerneltrap.org/node/4705
      and "Other Builtins" in gcc documentation */
// beware __GNUC__ indicates GNU C extensions, not gcc
#if __GNUC__ >= 3
#define likely(x)       __builtin_expect((x),1)
#define unlikely(x)     __builtin_expect((x),0)
#else
#define likely(x)       (x)
#define unlikely(x)     (x)
#endif


#endif /* ! _NBMISC_H_ */