From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Sun, 5 Mar 2023 12:21:58 +0000 (-0700)
Subject: Add a changelog entry.
X-Git-Tag: v9.5.0-rc1~505^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6618172bebc03ca8a6d410a61f495e743d2a47c7;p=dealii.git

Add a changelog entry.
---

diff --git a/doc/news/changes/minor/20230305Bangerth b/doc/news/changes/minor/20230305Bangerth
new file mode 100644
index 0000000000..cd0628908a
--- /dev/null
+++ b/doc/news/changes/minor/20230305Bangerth
@@ -0,0 +1,17 @@
+Fixed: It was previously possible to assign scalar values to
+VectorizedArray objects that were temporaries -- say in expressions
+such as
+```
+  VectorizedArray<...> my_function();
+  ...
+  my_function() = 1.234;
+```
+This does not make any sense: What `my_function()` returns is a
+temporary object, and assigning a value to it has no consequences
+because the temporary object dies at the end of the line. Whatever the
+programmer intended to do here was almost certainly a mistake.
+
+As a consequence, this is now prohibited and the compiler will produce
+an error when trying to do this.
+<br>
+(Wolfgang Bangerth, 2023/03/05)