Dylan Smith : richedit: Prevent integer overflow in wrapping code with no wrap.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b5e9aed2681d0a4944c1623a55964c9de22992a0
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=b5e9aed2681d0a4944c1623a55964c9de22992a0

Author: Dylan Smith <dylan.ah.smith at gmail.com>
Date:   Fri Aug 29 16:03:51 2008 -0400

richedit: Prevent integer overflow in wrapping code with no wrap.

---

 dlls/riched20/wrap.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dlls/riched20/wrap.c b/dlls/riched20/wrap.c
index a3c5d54..6f6e32c 100644
--- a/dlls/riched20/wrap.c
+++ b/dlls/riched20/wrap.c
@@ -377,7 +377,7 @@ static ME_DisplayItem *ME_WrapHandleRun(ME_WrapContext *wc, ME_DisplayItem *p)
   }
 
   /* will current run fit? */
-  if (wc->pt.x + run->nWidth > wc->context->pt.x + wc->nAvailWidth)
+  if (wc->pt.x + run->nWidth - wc->context->pt.x > wc->nAvailWidth)
   {
     int loc = wc->context->pt.x + wc->nAvailWidth - wc->pt.x;
     /* total white run ? */