ack/lang/cem/cemcom.ansi/arith.h

/*
 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
 * See the copyright notice in the ACK home directory, in the file "Copyright".
 */
/* $Id$ */
/* COMPILER ARITHMETIC */

/*	Normally the compiler does its internal arithmetics in longs
	native to the source machine, which is always good for local
	compilations, and generally OK too for cross compilations
	downwards and sidewards.  For upwards cross compilation and
	to save storage on small machines, SPECIAL_ARITHMETICS will
	be handy.
*/
#ifndef ARITH_H_
#define ARITH_H_

#include	"parameters.h"

#ifndef	SPECIAL_ARITHMETICS

#include    <em_arith.h>		/* obtain definition of "arith"	*/
#include	<flt_arith.h>

#else	/* SPECIAL_ARITHMETICS */

/*	All preprocessor arithmetic should be done in longs.
*/
#define	arith	long				/* dummy */

#endif	/* SPECIAL_ARITHMETICS */

struct expr;
struct type;

#define	arith_size	(sizeof(arith))
#define	arith_sign	((arith) 1 << (arith_size * 8 - 1))
#define	max_arith	(~arith_sign)

void arithbalance(register struct expr **e1p, int oper, register struct expr **e2p);
void relbalance(register struct expr **e1p, int oper, register struct expr **e2p);
void ch3pointer(struct expr **expp, int oper, register struct type *tp);
int any2arith(register struct expr **expp, register int oper);
void erroneous2int(struct expr **expp);
struct expr *arith2arith(struct type *tp, int oper, register struct expr *expr);
int int2int(struct expr **expp, register struct type *tp);
void int2float(register struct expr **expp, struct type *tp);
void float2int(struct expr **expp, struct type *tp);
void float2float(register struct expr **expp, struct type *tp);
void array2pointer(register struct expr *exp);
void function2pointer(register struct expr *exp);
void string2pointer(register struct expr *ex);
void opnd2integral(register struct expr **expp, int oper);
void opnd2logical(register struct expr **expp, int oper);
void opnd2test(register struct expr **expp, int oper);
void any2opnd(register struct expr **expp, int oper);
void any2parameter(register struct expr **expp);
void field2arith(register struct expr **expp);
void switch_sign_fp(register struct expr *expr);

#endif /* ARITH_H_ */