From: André Pönitz <poenitz@gmx.net>
Date: Fri, 12 Oct 2001 07:52:13 +0000 (+0000)
Subject: fix out-of-bounds bug
X-Git-Tag: 1.6.10~20496
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=739f74c54aaf109efbcd23d685ff84e7a31bc9bf;p=features.git

fix out-of-bounds bug


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2864 a592a061-630c-0410-9148-cb99ea01b6c8
---

diff --git a/src/mathed/math_fracbase.C b/src/mathed/math_fracbase.C
index aa17ea7e82..0cb0086bb2 100644
--- a/src/mathed/math_fracbase.C
+++ b/src/mathed/math_fracbase.C
@@ -25,20 +25,22 @@ bool MathFracbaseInset::idxLeft(MathInset::idx_type &,
 
 
 bool MathFracbaseInset::idxUp(MathInset::idx_type & idx,
-			      MathInset::pos_type &) const
+			      MathInset::pos_type & pos) const
 {
 	if (idx == 0)
 		return false;
 	idx = 0;
+	pos = std::min(pos, cell(idx).size());
 	return true;
 }
 
 
 bool MathFracbaseInset::idxDown(MathInset::idx_type & idx,
-				MathInset::pos_type &) const
+				MathInset::pos_type & pos) const
 {
 	if (idx == 1)
 		return false;
 	idx = 1;
+	pos = std::min(pos, cell(idx).size());
 	return true;
 }