From 4d05a6319d07b5a686083043b69643a5550c2eeb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Gl=C3=B6ckner?= <daniel-gl@gmx.net>
Date: Mon, 15 Mar 2010 22:37:41 +0100
Subject: [PATCH] Catch array[index] with unknown sizeof(*array)

We could support this for index == 0, but GCC doesn't bother, so why should we?
---
 tccgen.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tccgen.c b/tccgen.c
index 805410b8..f1fe1ee3 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -1548,11 +1548,14 @@ ST_FUNC void gen_op(int op)
             }
             type1 = vtop[-1].type;
             type1.t &= ~VT_ARRAY;
+            u = pointed_size(&vtop[-1].type);
+            if (u < 0)
+                error("unknown array element size");
 #ifdef TCC_TARGET_X86_64
-            vpushll(pointed_size(&vtop[-1].type));
+            vpushll(u);
 #else
             /* XXX: cast to int ? (long long case) */
-            vpushi(pointed_size(&vtop[-1].type));
+            vpushi(u);
 #endif
             gen_op('*');
 #ifdef CONFIG_TCC_BCHECK