fix comparison operator priority

[calc.git] / parser.h

diff --git a/parser.h b/parser.h
index c746aaf4dfe757d00fc8dd223484046660536070..fb09da26debb0caf909dfb211775af657ec765de 100644 (file)
--- a/parser.h
+++ b/parser.h
@@ -1,16 +1,23 @@
 #ifndef __PARSER_H__
 #define __PARSER_H__
 
+/* global variables */
+
+extern double answer;
+
 /* function type */
 
 typedef enum {
-    Val = 0,
+    Val = 0, Sig,
     Add, Sub,
     Mul, Div, Mod,
     Pow, Sqr,
-    Cos, Sin, Atn,
+    Cos, Sin, Atan,
     Log, Exp,
-    Sig
+    Store, Recall, Disp,
+    Quit, Help,
+    Ans, E, Pi,
+    Equal, Diff, Ge, Le, Gt, Lt
 } func_t;
 
 /* keyword type */
@@ -30,7 +37,7 @@ typedef struct _element_t {
     func_t func;
     int nbops;
     struct _element_t *ops[MAX_OPERANDS];
-    float value;
+    double value;
     int prio;
 } element_t;
 
@@ -38,6 +45,8 @@ typedef struct _element_t {
 
 /* parser function */
 
+void delelement (element_t *root);
+
 element_t *parser (char *str, char **next, int prio);
 
 void print_element (element_t *root, int level);