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+/*
+
+ casm - Simple, portable assembler
+
+ Copyright (C) 2003-2015 Ian Cowburn (ianc@noddybox.demon.co.uk)
+
+ 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 <http://www.gnu.org/licenses/>.
+
+ -------------------------------------------------------------------------
+
+ Expands an expression.
+
+*/
+
+#ifndef CASM_EXPR_H
+#define CASM_EXPR_H
+
+/* ---------------------------------------- INTERFACES
+*/
+
+/* Converts a number to a sized value. If the number is negative then the
+ result is returned in twos complement form.
+*/
+int ExprConvert(int no_bits, int value);
+
+
+/* Returns the result of expr and stores the answer in result.
+ Returns FALSE on error.
+*/
+int ExprEval(const char *expr, int *result);
+
+
+/* Gets a readable reason for an error from ExprEval() or ExprParse.
+*/
+const char *ExprError(void);
+
+
+#endif
+
+/*
+vim: ai sw=4 ts=8 expandtab
+*/