Added boundary check.

2010-03-12 11:31:14 +01:00
parent 933ef8cff0
commit a2ded1e8ea
1 changed files with 7 additions and 5 deletions
--- a/src/libs/cplusplus/ExpressionUnderCursor.cpp
+++ b/src/libs/cplusplus/ExpressionUnderCursor.cpp
@@ -147,11 +147,13 @@ int ExpressionUnderCursor::startOfExpression_helper(BackwardsScanner &tk, int in
                    --i;
            }

-            int j = i;
-            while (tk[j].is(T_LBRACKET))
-                ++j;
-            if (tk[j].is(T_IDENTIFIER) && tk[j + 1].is(T_IDENTIFIER))
-                return i;
+            if (i >= 0) {
+                int j = i;
+                while (tk[j].is(T_LBRACKET))
+                    ++j;
+                if (tk[j].is(T_IDENTIFIER) && tk[j + 1].is(T_IDENTIFIER))
+                    return i;
+            }
        }
        return index - 1;
    } else if (tk[index - 1].is(T_RPAREN)) {