From a0500c3d4259db15e5b11c0d7cded19840efa3e5 Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Sun, 12 Feb 2017 14:19:01 +0000
Subject: Do not access a NULL pointer if a matrix or square root are empty.
 Crashes found by tb@ with afl(1).

---
 regress/eqn/unary/sqrt.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'regress/eqn/unary/sqrt.in')

diff --git a/regress/eqn/unary/sqrt.in b/regress/eqn/unary/sqrt.in
index 359c3d7b..b416da7c 100644
--- a/regress/eqn/unary/sqrt.in
+++ b/regress/eqn/unary/sqrt.in
@@ -1,4 +1,4 @@
-.Dd October 10, 2014
+.Dd February 12, 2017
 .Dt UNARY-SQRT 1
 .Os OpenBSD
 .Sh NAME
@@ -7,6 +7,6 @@
 .Sh DESCRIPTION
 initial text
 .EQ
-r = sqrt { x sup 2 + y sup 2 }
+r = sqrt { x sup 2 + y sup 2 } + sqrt { } + sqrt
 .EN
 final text
-- 
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