可能会说出好多条,但我认为就一句话:简化代码的书写和修改难度。
#define LOKI_THREADS_MUTEX(x)
#define LOKI_THREADS_MUTEX_INIT(x)
#define LOKI_THREADS_MUTEX_DELETE(x)
#define LOKI_THREADS_MUTEX_LOCK(x)
#define LOKI_THREADS_MUTEX_UNLOCK(x)
#define LOKI_THREADS_LONG
#define LOKI_THREADS_MUTEX_CTOR(x)
后面都是空的就只起注释作用了。