Hi!
On Thu, Mar 14, 2024 at 04:58:41PM +0000, Jonathan Wakely wrote:
> Add the [[nodiscard]] attribute to several functions in <algorithm>.
r14-9478 added [[nodiscard]] to various <algorithm> APIs including find_if
the pr104601.C testcase uses. As it is an optimization bug fix testcase,
haven't tried to adjust the testcase to use the find_if result, but instead
have added -Wno-unused-result flag to quiet the warning.
The testcase tests side-effects of the lambda used by find_if rather than
its actual result.
Tested on x86_64-linux -m32/-m64, committed to trunk as obvious.
2024-03-15 Jakub Jelinek <ja...@redhat.com>
* g++.dg/torture/pr104601.C: Add -Wno-unused-result to dg-options.
--- gcc/testsuite/g++.dg/torture/pr104601.C.jj 2022-05-23 21:44:48.390854093
+0200
+++ gcc/testsuite/g++.dg/torture/pr104601.C 2024-03-15 09:59:08.581824938
+0100
@@ -1,6 +1,6 @@
// PR tree-optimization/104601
// { dg-do run }
-// { dg-options "-std=c++17" }
+// { dg-options "-std=c++17 -Wno-unused-result" }
#include <algorithm>
#include <optional>
Jakub
