From efa862d4f89401c5148746a5aba4d88ed6b6cbaa Mon Sep 17 00:00:00 2001
From: Robin Haberkorn <robin.haberkorn@googlemail.com>
Date: Wed, 22 Jul 2015 01:40:53 +0200
Subject: fixed operator precedence list

 * necessary since in SciTECO every operator has a different
   precedence. E.g. successive additions/subtractions cannot
   be evaluated from left to right (by their associativity).
   Perhaps this should be changed.
 * subtraction must have a higher precedence than addition,
   since (a+b)-c == a+(b-c)
 * division must have a higher precedence than multiplication
   since (a*b)/c == a*(b/c).
   This is not quite true for integer arithmetics.
 * this fixes expressions like 5-1+1 which were counterintuitively
   evaluated like 5-(1+1)
---
 src/expressions.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/expressions.h')

diff --git a/src/expressions.h b/src/expressions.h
index a0e2908..f97ec1c 100644
--- a/src/expressions.h
+++ b/src/expressions.h
@@ -159,11 +159,11 @@ public:
 	enum Operator {
 		OP_NIL = 0,
 		OP_POW,		// ^*
-		OP_MUL,		// *
-		OP_DIV,		// /
 		OP_MOD,		// ^/
-		OP_ADD,		// +
+		OP_DIV,		// /
+		OP_MUL,		// *
 		OP_SUB,		// -
+		OP_ADD,		// +
 		OP_AND,		// &
 		OP_XOR,		// ^#
 		OP_OR,		// #
-- 
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