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From: Jonathan Wakely <redi@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org
Subject: [gcc r14-4065] libstdc++: Remove dg-options "-std=gnu++20" from
 21_strings tests
X-Act-Checkin: gcc
X-Git-Author: Jonathan Wakely <jwakely@redhat.com>
X-Git-Refname: refs/heads/master
X-Git-Oldrev: 6d0b43f5b81c35f4be6e33770b37060f12340a65
X-Git-Newrev: d8c446a147efe9f25247e2726caec1f52e61b4d3
Message-Id: <20230915231847.E40D1385771E@sourceware.org>
Date: Fri, 15 Sep 2023 23:18:47 +0000 (GMT)
List-Id: <gcc-cvs.sourceware.org>

https://gcc.gnu.org/g:d8c446a147efe9f25247e2726caec1f52e61b4d3

commit r14-4065-gd8c446a147efe9f25247e2726caec1f52e61b4d3
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Sep 15 14:27:56 2023 +0100

    libstdc++: Remove dg-options "-std=gnu++20" from 21_strings tests
    
    The testsuite will automatically select C++20 for these tests now, and
    removing the hardcoded -std option allows them to be tested for C++23
    and C++26 as well.
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/21_strings/basic_string/cons/char/105995.cc: Remove
            dg-options -std=gnu++20.
            * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
            Likewise.
            * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
            Likewise.
            * testsuite/21_strings/basic_string/erasure.cc: Likewise.
            * testsuite/21_strings/basic_string/hash/hash_char8_t.cc:
            Likewise.
            * testsuite/21_strings/basic_string/literals/constexpr.cc:
            Likewise.
            * testsuite/21_strings/basic_string/modifiers/constexpr.cc:
            Likewise.
            * testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
            Likewise.
            * testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operations/ends_with/char.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operations/starts_with/char.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc:
            Likewise.
            * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/cons/char/range.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
            Likewise.
            * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc:
            Likewise.
            * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
            Likewise.

Diff:
---
 libstdc++-v3/testsuite/21_strings/basic_string/cons/char/105995.cc     | 1 -
 libstdc++-v3/testsuite/21_strings/basic_string/cons/char/constexpr.cc  | 1 -
 .../testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc        | 1 -
 libstdc++-v3/testsuite/21_strings/basic_string/erasure.cc              | 3 +--
 libstdc++-v3/testsuite/21_strings/basic_string/hash/hash_char8_t.cc    | 3 +--
 libstdc++-v3/testsuite/21_strings/basic_string/literals/constexpr.cc   | 1 -
 libstdc++-v3/testsuite/21_strings/basic_string/modifiers/constexpr.cc  | 1 -
 .../21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc        | 1 -
 .../testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc      | 1 -
 .../testsuite/21_strings/basic_string/operations/ends_with/char.cc     | 3 +--
 .../testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc  | 2 +-
 .../testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc  | 3 +--
 .../testsuite/21_strings/basic_string/operations/starts_with/char.cc   | 3 +--
 .../21_strings/basic_string/operations/starts_with/nonnull.cc          | 2 +-
 .../21_strings/basic_string/operations/starts_with/wchar_t.cc          | 3 +--
 .../testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc      | 3 +--
 .../testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc   | 3 +--
 libstdc++-v3/testsuite/21_strings/basic_string_view/cons/char/range.cc | 1 -
 .../21_strings/basic_string_view/operations/copy/char/constexpr.cc     | 3 +--
 .../21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc  | 3 +--
 .../21_strings/basic_string_view/operations/ends_with/char.cc          | 3 +--
 .../21_strings/basic_string_view/operations/ends_with/nonnull.cc       | 2 +-
 .../21_strings/basic_string_view/operations/ends_with/wchar_t.cc       | 3 +--
 .../21_strings/basic_string_view/operations/starts_with/char.cc        | 3 +--
 .../21_strings/basic_string_view/operations/starts_with/nonnull.cc     | 2 +-
 .../21_strings/basic_string_view/operations/starts_with/wchar_t.cc     | 3 +--
 .../testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc | 3 +--
 .../21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc        | 3 +--
 .../21_strings/basic_string_view/requirements/constexpr_iter.cc        | 3 +--
 .../21_strings/char_traits/requirements/constexpr_functions_c++20.cc   | 1 -
 30 files changed, 21 insertions(+), 47 deletions(-)

diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/105995.cc b/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/105995.cc
index 4764ceff72a..ad3ec1f41ff 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/105995.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/105995.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 // { dg-require-effective-target cxx11_abi }
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/constexpr.cc b/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/constexpr.cc
index 5a1c0e6a05d..8c60708a3d3 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/constexpr.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/cons/char/constexpr.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 // { dg-require-effective-target cxx11_abi }
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc b/libstdc++-v3/testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc
index 260f8b3947e..40cea53b590 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 // { dg-require-effective-target cxx11_abi }
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/erasure.cc b/libstdc++-v3/testsuite/21_strings/basic_string/erasure.cc
index d12ce9e9695..b85496a16f1 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/erasure.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/erasure.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/hash/hash_char8_t.cc b/libstdc++-v3/testsuite/21_strings/basic_string/hash/hash_char8_t.cc
index c5420448db9..ae2dc2cb3c8 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/hash/hash_char8_t.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/hash/hash_char8_t.cc
@@ -15,8 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 #include <string>
 #include <memory_resource>
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/literals/constexpr.cc b/libstdc++-v3/testsuite/21_strings/basic_string/literals/constexpr.cc
index f1ccb5dc166..c2b54f15fc4 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/literals/constexpr.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/literals/constexpr.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 // { dg-require-effective-target cxx11_abi }
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/constexpr.cc b/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/constexpr.cc
index 77fe59bb785..0e28a6d4487 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/constexpr.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/constexpr.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 // { dg-require-effective-target cxx11_abi }
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc b/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc
index 6b3a304512c..09d09af7164 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 // { dg-require-effective-target cxx11_abi }
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc b/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc
index 1137a3e9931..de774bbbc9a 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 // { dg-require-effective-target cxx11_abi }
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/char.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/char.cc
index f1e4ea3c5d0..1fd34552c1e 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/char.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/char.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc
index ba77f0124d0..7e720be1278 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc
@@ -1,4 +1,4 @@
-// { dg-options "-std=gnu++20 -Wnonnull -O0 -Wno-unused-result" }
+// { dg-options "-Wnonnull -O0 -Wno-unused-result" }
 // { dg-do compile { target c++20 } }
 
 #include <testsuite_string.h>
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc
index e8fef749fb0..30c446f8602 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/char.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/char.cc
index c8357d20374..f9e263b476e 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/char.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/char.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc
index a023d9ec227..fe8c6a7702c 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc
@@ -1,4 +1,4 @@
-// { dg-options "-std=gnu++20 -Wnonnull -O0 -Wno-unused-result" }
+// { dg-options "-Wnonnull -O0 -Wno-unused-result" }
 // { dg-do compile { target c++20 } }
 
 #include <testsuite_string.h>
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc
index aaef4cb31b8..ee685b95b9c 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc
index b78195f5479..fe69635bdae 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc
@@ -15,8 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // C++20 21.3.3.2 Non-member comparison functions [string.cmp]
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc
index ed9f61e059d..4ae4d3d4324 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc
@@ -15,8 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // C++20 21.3.3.2 Non-member comparison functions [string.cmp]
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/cons/char/range.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/cons/char/range.cc
index 568b8a0a3e4..d28b235a04f 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/cons/char/range.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/cons/char/range.cc
@@ -15,7 +15,6 @@
 // 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 <string_view>
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc
index 309e919d726..b91fea03c62 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc
@@ -15,8 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
 
 #include <string_view>
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc
index adfbf0a8ff3..0f692d7a322 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc
@@ -15,8 +15,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
 
 #include <string_view>
 
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/char.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/char.cc
index e5ce2f0b52c..615336363f0 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/char.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/char.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc
index 50437bb448a..7521b621855 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc
@@ -1,4 +1,4 @@
-// { dg-options "-std=gnu++20 -Wnonnull -O0 -Wno-unused-result" }
+// { dg-options "-Wnonnull -O0 -Wno-unused-result" }
 // { dg-do compile { target c++20 } }
 
 #include <string_view>
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc
index 6984a7f1d73..9e83c85f6a6 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/char.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/char.cc
index ec0bc0532c8..4f2429014a0 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/char.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/char.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc
index fedba28afa3..dfdf2255455 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc
@@ -1,4 +1,4 @@
-// { dg-options "-std=gnu++20 -Wnonnull -O0 -Wno-unused-result" }
+// { dg-options "-Wnonnull -O0 -Wno-unused-result" }
 // { dg-do compile { target c++20 } }
 
 #include <string_view>
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc
index 8535d7a7966..1d8c6431b4e 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
 
 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc
index 0ce700ce0b7..537505b113a 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // Copyright (C) 2020-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc
index 9911b69d9a4..50df0ace53c 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do run { target c++2a } }
+// { dg-do run { target c++20 } }
 
 // Copyright (C) 2020-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc
index 249e48de537..954c7eea6da 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc
@@ -1,5 +1,4 @@
-// { dg-options "-std=gnu++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
 //
 // Copyright (C) 2019-2023 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc
index bdc0b0a2103..805b84dea58 100644
--- a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc
+++ b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++20" }
 // { dg-do compile { target c++20 } }
 
 // Copyright (C) 2017-2023 Free Software Foundation, Inc.