#ifndef __U_H#define __U_H#ifndef _PLAN9_SOURCE   This header file is an extension to ANSI/POSIX#endif #define nil		((void*)0)typedef	unsigned short	ushort;typedef	unsigned char	uchar;typedef unsigned long	ulong;typedef unsigned int	uint;typedef   signed char	schar;typedef	long long	vlong;typedef	unsigned long long uvlong;typedef	uint		Rune;typedef 	union FPdbleword FPdbleword;typedef	char*	p9va_list; #endif