From f1e91a161417c0fb6a4d314cfee33e7947ba28f5 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sun, 28 Apr 2024 01:46:47 +0200
Subject: [PATCH] rogueviz::dhr:: fixed unused result

---
 rogueviz/dhrg/embedder.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rogueviz/dhrg/embedder.cpp b/rogueviz/dhrg/embedder.cpp
index cc25a88f..7e448415 100644
--- a/rogueviz/dhrg/embedder.cpp
+++ b/rogueviz/dhrg/embedder.cpp
@@ -319,7 +319,7 @@ void load_embedded(const string s) {
     while(true) {
       char who[500], where[500];
       who[0] = 0;
-      fscanf(f, "%s%s", who, where);
+      if(fscanf(f, "%s%s", who, where) < 0) throw hstream_exception("error loading embedding");
       if(who[0] == 0) break;
       if(!ids.count(who)) printf("unknown vertex: %s\n", who);
       string wh = where;