You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/**
|
|
* @file ops.h
|
|
* Provides arithematic operators to the parser
|
|
*
|
|
* Copyright (C) 2018 Clyne Sullivan
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef OPS_H_
|
|
#define OPS_H_
|
|
|
|
#include "variable.h"
|
|
|
|
/**
|
|
* Defines the number of available operators.
|
|
*/
|
|
#define OPS_COUNT 18
|
|
|
|
#define OP_MAGIC 0xCAFE3900
|
|
|
|
typedef int (*opfunc_t)(variable *, variable *, variable *);
|
|
|
|
/**
|
|
* An array of variable objects for each operator, exposed for the parser.
|
|
*/
|
|
extern variable opvars[];
|
|
|
|
/**
|
|
* An array of operator names, exposed for the parser.
|
|
*/
|
|
extern const char *opnames[];
|
|
|
|
/**
|
|
* Gets the variable for the given operator.
|
|
* @param name the operator (e.g. "+")
|
|
* @param retlen if not null, stores the operator string's length here
|
|
* @return variable for the operator, zero if not found
|
|
*/
|
|
variable *igetop(const char *name, int *retlen);
|
|
|
|
#endif // OPS_H_
|