From 44611e668c0c8fc316db7a65538b766e87043627 Mon Sep 17 00:00:00 2001
From: Matthias Hochsteger <mhochsteger@cerbsim.com>
Date: Mon, 25 Nov 2024 13:56:31 +0100
Subject: [PATCH] Fix Segfault in MPI ReceiveMesh

See https://github.com/NGSolve/netgen/issues/196
---
 libsrc/meshing/parallelmesh.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libsrc/meshing/parallelmesh.cpp b/libsrc/meshing/parallelmesh.cpp
index 997eaad5..e8fc71d7 100644
--- a/libsrc/meshing/parallelmesh.cpp
+++ b/libsrc/meshing/parallelmesh.cpp
@@ -1204,7 +1204,7 @@ namespace netgen
     auto write_names = [&] (auto & array) {
       for (int k = 0; k < array.Size(); k++) {
 	int s = name_sizes[tot_nn];
-	array[k] = new string(&compiled_names[tot_size], s);
+	array[k] = s ? new string(&compiled_names[tot_size], s) : nullptr;
 	tot_nn++;
 	tot_size += s;
       }