From 339ded6179de8c98dd895da4229f5693b2a95795 Mon Sep 17 00:00:00 2001
From: Robert Vollmert <rvollmert@gmx.net>
Date: Tue, 3 Nov 2009 12:22:48 +0100
Subject: Add pre- and post-asserts to ray_def::regress.

---
 crawl-ref/source/ray.cc | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'crawl-ref')

diff --git a/crawl-ref/source/ray.cc b/crawl-ref/source/ray.cc
index bb3dde3a8e..6d7049b4ab 100644
--- a/crawl-ref/source/ray.cc
+++ b/crawl-ref/source/ray.cc
@@ -321,7 +321,9 @@ void ray_def::bounce(const reflect_grid &rg)
 
 void ray_def::regress()
 {
+    ASSERT(_valid());
     r.dir = -r.dir;
     advance();
     r.dir = -r.dir;
+    ASSERT(_valid());
 }
-- 
cgit v1.2.3-54-g00ecf