text: /*************************************************************************
  	> File Name: keyword.h
  	> Author: answer
  	> Mail: yuanweijie1993@gmail.com
  	> Created Time: Wed 18 Nov 2020 06:01:23 PM CST
   ************************************************************************/
  
  #ifndef __KEYWORD__H
  #define __KEYWORD__H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* GCC (version >= 2.96) support, meet here by default */
  #ifdef __GNUC__
  #define LIKELY(x)       (__builtin_expect(!!(x), 1))
  #define UNLIKELY(x)     (__builtin_expect(!!(x), 0))
  #else
  #define LIKELY(x)       (x)
  #define UNLIKELY(x)     (x)
  #endif
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif
  