From: Sebastian Kinnewig <kinnewig@ifam.uni-hannover.de>
Date: Wed, 31 Jan 2024 09:55:52 +0000 (+0100)
Subject: Fix assert in import_elements from ReadWriteVector
X-Git-Tag: relicensing~91^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F16574%2Fhead;p=dealii.git

Fix assert in import_elements from ReadWriteVector
---

diff --git a/include/deal.II/lac/read_write_vector.templates.h b/include/deal.II/lac/read_write_vector.templates.h
index 1ed6f1f279..c72a04c8c7 100644
--- a/include/deal.II/lac/read_write_vector.templates.h
+++ b/include/deal.II/lac/read_write_vector.templates.h
@@ -586,7 +586,7 @@ namespace LinearAlgebra
 
     using size_type = std::decay_t<decltype(size)>;
 
-    Assert(size == 0 || values != nullptr, ExcInternalError("Import failed."));
+    Assert(size == 0 || !values.empty(), ExcInternalError("Import failed."));
     AssertDimension(size, stored_elements.n_elements());
 
     switch (operation)