Fix bug spotted by cppcheck.

diff --git a/superhack.c b/superhack.c
index eacb8eb2d9befc0e91a9c3d7663e5a1ca92dfc0f..f4f616e79c980464072f99942efb8e928619977b 100644 (file)
--- a/superhack.c
+++ b/superhack.c
@@ -231,7 +231,7 @@ void throw()
     }
 
     for (k = 0; k < j9; k++)
-       if (path[k] == path[k - 2])
+       if (k >= 2 && path[k] == path[k - 2])
        {
            (void) puts("Pies can't fly that crookedly --- try again.");
            return;