longlong.h

日本著名的的嵌入式实时操作系统T-Kernel的源码及用户手册。

/*
 *----------------------------------------------------------------------
 *    T-Kernel
 *
 *    Copyright (C) 2004 by Ken Sakamura. All rights reserved.
 *    T-Kernel is distributed under the T-License.
 *----------------------------------------------------------------------
 *
 *    Version:   1.01.00
 *    Released by T-Engine Forum(http://www.t-engine.org) at 2004/6/28.
 *
 *----------------------------------------------------------------------
 */

/*
 *	longlong.h
 *
 *	64 bit length integer 
 */

#ifndef _LONGLONG_
#define _LONGLONG_

#ifdef __cplusplus
extern "C" {
#endif

#ifdef __GNUC__

typedef long long	longlong;

#define	ltoll(a)	( (longlong)(a) )
#define	lltol(a)	( (long)(a) )
#define	ll_add(a,b)	( (a) + (b) )
#define	ll_sub(a,b)	( (a) - (b) )
#define	ll_mul(a,b)	( (a) * (b) )
#define	li_mul(a,b)	( (a) * (b) )
#define	ll_div(a,b)	( (a) / (b) )
#define	li_div(a,b)	( (a) / (b) )
#define	ll_mod(a,b)	( (a) % (b) )
#define	li_mod(a,b)	( (a) % (b) )
#define	ll_cmp(a,b)	( (a) - (b) )	/* +:a>b,0:a=b,-:a<b */
#define	ll_sign(a)	( (a) )		/* +:a>0,0:a=0,-:a<0 */
#define	ll_neg(a)	( -(a) )
#define	ll_inc(a)	( (*(a))++ )
#define	ll_dec(a)	( (*(a))-- )

#define	hilo_ll(ll, h, l)	( (ll) = ((longlong)(h) << 32) | (l) )
#define	ll_hilo(h, l, ll)	( (h) = (long)((ll) >> 32), \
				  (l) = (unsigned long)(ll) )

#else /* __GNUC__ */

typedef struct {
	long			hi;
	unsigned long	lo;
} longlong;

extern longlong	ltoll( long a );			/* (longlong)a */
extern long	lltol( longlong a );			/* (long)a */
extern longlong	ll_add( longlong a, longlong b );	/* a+b */
extern longlong	ll_sub( longlong a, longlong b );	/* a-b */
extern longlong	ll_mul( longlong a, longlong b );	/* a*b */
extern longlong	li_mul( longlong a, long b );		/* a*b */
extern longlong	ll_div( longlong a, longlong b );	/* a/b */
extern longlong	li_div( longlong a, long b );		/* a/b */
extern longlong	ll_mod( longlong a, longlong b );	/* a%b */
extern long	li_mod( longlong a, long b );		/* a%b */
extern int	ll_cmp( longlong a, longlong b );	/* +:a>b,0:a=b,-:a<b */
extern int	ll_sign( longlong a );			/* +:a>0,0:a=0,-:a<0 */
extern longlong ll_neg( longlong a );			/* -a */
extern void	ll_inc( longlong *a );			/* (*a)++ */
extern void	ll_dec( longlong *a );			/* (*a)-- */

#define	hilo_ll(ll, h, l)	( (ll).hi = (h), (ll).lo = (l) )
#define	ll_hilo(h, l, ll)	( (h) = (ll).hi, (l) = (ll).lo )

#endif /* __GNUC__ */

#ifdef __cplusplus
}
#endif
#endif /* _LONGLONG_ */