/* * func - built-in function interface definitions * * Copyright (C) 1999  David I. Bell * * Calc is open software; you can redistribute it and/or modify it under * the terms of the version 2.1 of the GNU Lesser General Public License * as published by the Free Software Foundation. * * Calc is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU Lesser General * Public License for more details. * * A copy of version 2.1 of the GNU Lesser General Public License is * distributed with calc under the filename COPYING-LGPL.  You should have * received a copy with calc; if not, write to Free Software Foundation, Inc. * 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA. * * @(#) $Revision: 29.4 $ * @(#) $Id: func.h,v 29.4 2001/06/08 21:00:58 chongo Exp $ * @(#) $Source: /usr/local/src/cmd/calc/RCS/func.h,v $ * * Under source code control:	1990/02/15 01:48:33 * File existed as early as:	before 1990 * * Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/ */#if !defined(__FUNC_H__)#define __FUNC_H__#if defined(CALC_SRC)	/* if we are building from the calc source tree */# include "calc.h"# include "label.h"#else# include <calc/calc.h># include <calc/label.h>#endif/* * Structure of a function. * The f_opcodes array is actually of variable size. */typedef struct func FUNC;struct func {	FUNC *f_next;			/* next function in list */	unsigned long f_opcodecount;	/* size of opcode array */	unsigned int f_localcount;	/* number of local variables */	unsigned int f_paramcount;	/* max number of parameters */	char *f_name;			/* function name */	VALUE f_savedvalue;		/* saved value of last expression */	unsigned long f_opcodes[1];	/* array of opcodes (variable length) */};/* * Amount of space needed to allocate a function of n opcodes. */#define funcsize(n) (sizeof(FUNC) + (n) * sizeof(long))/* * Size of a character pointer rounded up to a number of opcodes. */#define PTR_SIZE ((sizeof(char *) + sizeof(long) - 1) / sizeof(long))/* * The current function being compiled. */extern FUNC *curfunc;/* * Functions to handle functions. */extern FUNC *findfunc(long index);extern char *namefunc(long index);extern BOOL evaluate(BOOL nestflag);extern long adduserfunc(char *name);extern void rmuserfunc(char *name);extern void rmalluserfunc(void);extern long getuserfunc(char *name);extern void beginfunc(char *name, BOOL newflag);extern int builtinopcode(long index);extern char *builtinname(long index);extern int dumpop(unsigned long *pc);extern void addop(long op);extern void endfunc(void);extern void addopone(long op, long arg);extern void addoptwo(long op, long arg1, long arg2);extern void addoplabel(long op, LABEL *label);extern void addopptr(long op, char *ptr);extern void writeindexop(void);extern void showbuiltins(void);extern int getbuiltinfunc(char *name);extern void builtincheck(long index, int count);extern void addopfunction(long op, long index, int count);extern void showfunctions(void);extern void initfunctions(void);extern void clearopt(void);extern void updateoldvalue(FUNC *fp);extern void calculate(FUNC *fp, int argcount);extern VALUE builtinfunc(long index, int argcount, VALUE *stck);extern void freenumbers(FUNC *);extern void freefunc(FUNC *);#endif /* !__FUNC_H__ */