text: #ifndef RANDOM_H_
  #define RANDOM_H_
  
  #define LFG_MOD		1000000
  #define	LFG_OFFSET	500000
  
  #define LCG_MOD		(1 << 20)
  #define LCG_OFFSET	(1 << 19)
  
  #define next_lfg_u()	next_lfg(0)
  #define next_lfg_s()	next_lfg(LFG_OFFSET)
  
  int next_lfg (int);
  int next_lcg (void);
  
  #endif
  