From 3494e6b3909f48755df92edbb5e60d2be8a6b964 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sat, 2 Mar 2019 21:07:26 +0100
Subject: [PATCH] prevent crash bug-395 reported by Bohdan Tkhir

---
 src/frontend/com_display.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/frontend/com_display.c b/src/frontend/com_display.c
index b6c9a7432..37fa68251 100644
--- a/src/frontend/com_display.c
+++ b/src/frontend/com_display.c
@@ -43,6 +43,8 @@ com_display(wordlist *wl)
         tfree(s);               /*DG to avoid the cp_unquote memory leak */
         if (d == NULL)
             fprintf(cp_err, "Error: no such vector as %s.\n", wl->wl_word);
+        else if (d->v_plot == NULL)
+            fprintf(cp_err, "Error: no analog vector as %s.\n", wl->wl_word);
         else
             while (d) {
                 pvec(d);