[gcc r13-8024] libstdc++: Fix missing/misplaced { dg-options "-std=gnu++20" } in tests

[Jonathan Wakely]

https://gcc.gnu.org/g:a690ac89a1f1b3a25426b190f57e0512b8b7f3b5

commit r13-8024-ga690ac89a1f1b3a25426b190f57e0512b8b7f3b5
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Sep 7 00:21:37 2023 +0100

    libstdc++: Fix missing/misplaced { dg-options "-std=gnu++20" } in tests
    
    These tests do not run by default, because the c++20 effective target
    selector isn't matched.
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/23_containers/unordered_map/operations/1.cc: Add
            dg-options for C++20 mode.
            * testsuite/23_containers/unordered_multimap/operations/1.cc:
            Likewise.
            * testsuite/23_containers/unordered_multiset/operations/1.cc:
            Likewise.
            * testsuite/23_containers/unordered_set/operations/1.cc:
            Likewise.
    
    (cherry picked from commit b1ca841b8972e546570553df3e61326c86135404)

Diff:
---
 libstdc++-v3/testsuite/23_containers/unordered_map/operations/1.cc      | 1 +
 libstdc++-v3/testsuite/23_containers/unordered_multimap/operations/1.cc | 1 +
 libstdc++-v3/testsuite/23_containers/unordered_multiset/operations/1.cc | 1 +
 libstdc++-v3/testsuite/23_containers/unordered_set/operations/1.cc      | 1 +
 4 files changed, 4 insertions(+)

diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/operations/1.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/operations/1.cc
index cfeca606c55..835f845621b 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/operations/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/operations/1.cc
@@ -15,6 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-options "-std=gnu++20" }
 // { dg-do run { target c++20 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multimap/operations/1.cc b/libstdc++-v3/testsuite/23_containers/unordered_multimap/operations/1.cc
index 7e3867f345b..988a66695ef 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multimap/operations/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multimap/operations/1.cc
@@ -15,6 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-options "-std=gnu++20" }
 // { dg-do run { target c++20 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/operations/1.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/operations/1.cc
index 7db4d129c52..91b0f87cab8 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multiset/operations/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/operations/1.cc
@@ -15,6 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-options "-std=gnu++20" }
 // { dg-do run { target c++20 } }
 
 #include <unordered_set>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/operations/1.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/operations/1.cc
index b2f13990b56..dea21df7bcb 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_set/operations/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/operations/1.cc
@@ -15,6 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-options "-std=gnu++20" }
 // { dg-do run { target c++20 } }
 
 #include <unordered_set>