fix crash

git-svn-id: https://silmor.de/svn/softmagic/elam/trunk@653 6e3c4bff-ac9f-4ac1-96c5-d2ea494d3e33

diff --git a/src/elamexpression.cpp b/src/elamexpression.cpp
index 89d80f8..587cfea 100644 (file)
--- a/src/elamexpression.cpp
+++ b/src/elamexpression.cpp
@@ -158,6 +158,7 @@ inline QList<Token>Expression::simplifyTokens(QList<Token> toks)
 {
        QList<Token>ret;
        int min=0,max=toks.size()-1;
+       if(max<min)return ret;
        //eliminate redundant parentheses
        while(toks[min].type()==Token::ParOpen && toks[max].type()==Token::ParClose){
                min++;max--;