From b0adb79178a5a00e843c6ac27ce0e1bcd2bec9d8 Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Fri, 29 Jul 2005 11:34:02 +0000
Subject: [PATCH] Ben Hutchings reports that gcc 4 gives an optimiser warning
 because it can't tell that one branch of a particular switch is always taken.
 Adding a default clause with an automatic assertion failure apparently fixes
 it.

[originally from svn r6148]
---
 rect.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rect.c b/rect.c
index a7113af..439ae1f 100644
--- a/rect.c
+++ b/rect.c
@@ -1348,6 +1348,8 @@ static char *new_game_desc(game_params *params, random_state *rs,
                                 r1.x++;
                             r1.w--;
                             break;
+                          default:     /* should never happen */
+                            assert(!"invalid direction");
                         }
                         if (r1.h > 0 && r1.w > 0)
                             place_rect(params2, grid, r1);