#ifndef COMMON_H #define COMMON_H #include #include #define unlikely(expr) __builtin_expect (expr, 0) #define likely(expr) __builtin_expect (expr, 1) #define MIN(a,b) ((a)<(b)?(a):(b)) /* no side effects in arguments allowed! */ static inline int is_host_little(void) { short val = 0x10; return ((char *)&val)[0] != 0; } static inline long switch_endianness(long val) { long newval; ((char *)&newval)[3] = ((char *)&val)[0]; ((char *)&newval)[2] = ((char *)&val)[1]; ((char *)&newval)[1] = ((char *)&val)[2]; ((char *)&newval)[0] = ((char *)&val)[3]; return newval; } #endif/*COMMON_H*/