From fd06bca1513e0137cce50bb15e09bf1b5ea474a7 Mon Sep 17 00:00:00 2001
From: Eric House <xwords@eehouse.org>
Date: Mon, 6 Jul 2015 20:24:45 -0700
Subject: [PATCH] assert stream version being set consistently, not changed

---
 xwords4/common/memstream.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xwords4/common/memstream.c b/xwords4/common/memstream.c
index 129542f89..fcf62c47b 100644
--- a/xwords4/common/memstream.c
+++ b/xwords4/common/memstream.c
@@ -396,6 +396,8 @@ static void
 mem_stream_setVersion( XWStreamCtxt* p_sctx, XP_U16 vers )
 {
     MemStreamCtxt* stream = (MemStreamCtxt*)p_sctx;
+    /* Something's wrong if we're changing it -- I think */
+    XP_ASSERT( 0 == stream->version || vers == stream->version );
     stream->version = vers;
 } /* mem_stream_setVersion */