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* [gcc(refs/users/pheeck/heads/sccp)] doc: -Wdelete-non-virtual-dtor supersedes -Wnon-virtual-dtor
@ 2023-02-15 10:22 Filip Kastl
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From: Filip Kastl @ 2023-02-15 10:22 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:297172091c9150ef0ead909b546e19ece0c23d38
commit 297172091c9150ef0ead909b546e19ece0c23d38
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Wed Nov 23 10:01:06 2022 +0000
doc: -Wdelete-non-virtual-dtor supersedes -Wnon-virtual-dtor
The newer -Wdelete-non-virtual-dtor has no false positives and fewer
bugs. There is very little reason to use -Wnon-virtual-dtor instead.
gcc/ChangeLog:
* doc/invoke.texi (C++ Dialect Options): Recommend using
-Wdelete-non-virtual-dtor instead of -Wnon-virtual-dtor.
Diff:
---
gcc/doc/invoke.texi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 330da6eb5d4..4899bd1ea4c 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -3986,6 +3986,9 @@ destructor itself or in an accessible polymorphic base class, in which
case it is possible but unsafe to delete an instance of a derived
class through a pointer to the class itself or base class. This
warning is automatically enabled if @option{-Weffc++} is specified.
+The @option{-Wdelete-non-virtual-dtor} option (enabled by @option{-Wall})
+should be preferred because it warns about the unsafe cases without false
+positives.
@item -Wregister @r{(C++ and Objective-C++ only)}
@opindex Wregister
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