/*
expr.h
Copyright © 2008 William Astle

This file is part of LWASM.

LWASM 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 <http://www.gnu.org/licenses/>.
*/

/*
Definitions for expression evaluator
*/

#ifndef __expr_h_seen__
#define __expr_h_seen__

#include "lwval.h"

#ifndef __expr_c_seen__
#define __expr_E__ extern
#else
#define __expr_E__
#endif

// parse an expression
__expr_E__ LWVAL *lwasm_parse_expr(char **ptr);

// attempt to evaluate/simplify expression
__expr_E__ int lwasm_eval_expr(LWVAL *expr);

#undef __expr_E__

#endif // __expr_h_seen__