[gcc r14-4049] libstdc++: Replace dg-options "-std=c++20" with dg-add-options strict_std

[gcc r14-4049] libstdc++: Replace dg-options "-std=c++20" with dg-add-options strict_std

[Jonathan Wakely]

https://gcc.gnu.org/g:07c602bbbd5134a03b363009abe927d0761e5ff0

commit r14-4049-g07c602bbbd5134a03b363009abe927d0761e5ff0
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Mon Sep 4 14:11:54 2023 +0100

    libstdc++: Replace dg-options "-std=c++20" with dg-add-options strict_std
    
    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. Because they test a problem seen with -std=c++20 add
    the new { dg-add-options strict_std } directive so that the test runner
    uses -std=c++NN not -std=gnu++NN.
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/24_iterators/reverse_iterator/100639.cc: Remove
            dg-options and add dg-add-options strict_std.
            * testsuite/std/ranges/iota/93267.cc: Likewise.
            * testsuite/std/ranges/iota/96042.cc: Likewise.
            * testsuite/std/ranges/iota/size.cc: Likewise.
            * testsuite/std/ranges/subrange/96042.cc: Likewise.

Diff:
---
 libstdc++-v3/testsuite/24_iterators/reverse_iterator/100639.cc | 4 ++--
 libstdc++-v3/testsuite/std/ranges/iota/93267.cc                | 4 ++--
 libstdc++-v3/testsuite/std/ranges/iota/96042.cc                | 4 ++--
 libstdc++-v3/testsuite/std/ranges/iota/size.cc                 | 2 +-
 libstdc++-v3/testsuite/std/ranges/subrange/96042.cc            | 4 ++--
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/libstdc++-v3/testsuite/24_iterators/reverse_iterator/100639.cc b/libstdc++-v3/testsuite/24_iterators/reverse_iterator/100639.cc
index 5d0a7f4af27..68bf4e08488 100644
--- a/libstdc++-v3/testsuite/24_iterators/reverse_iterator/100639.cc
+++ b/libstdc++-v3/testsuite/24_iterators/reverse_iterator/100639.cc
@@ -15,8 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=c++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
+// { dg-add-options strict_std }
 
 // PR libstdc++/100639
 
diff --git a/libstdc++-v3/testsuite/std/ranges/iota/93267.cc b/libstdc++-v3/testsuite/std/ranges/iota/93267.cc
index 3bb74bbf485..4306aea4d43 100644
--- a/libstdc++-v3/testsuite/std/ranges/iota/93267.cc
+++ b/libstdc++-v3/testsuite/std/ranges/iota/93267.cc
@@ -15,8 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=c++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
+// { dg-add-options strict_std }
 
 #include <ranges>
 
diff --git a/libstdc++-v3/testsuite/std/ranges/iota/96042.cc b/libstdc++-v3/testsuite/std/ranges/iota/96042.cc
index 7070a7d6b10..6c553de9ce9 100644
--- a/libstdc++-v3/testsuite/std/ranges/iota/96042.cc
+++ b/libstdc++-v3/testsuite/std/ranges/iota/96042.cc
@@ -15,8 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=c++2a" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
+// { dg-add-options strict_std }
 
 #include <ranges>
 #include <limits>
diff --git a/libstdc++-v3/testsuite/std/ranges/iota/size.cc b/libstdc++-v3/testsuite/std/ranges/iota/size.cc
index 958cb5f03c8..28848d55561 100644
--- a/libstdc++-v3/testsuite/std/ranges/iota/size.cc
+++ b/libstdc++-v3/testsuite/std/ranges/iota/size.cc
@@ -15,8 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=c++2a" }
 // { dg-do compile { target c++2a } }
+// { dg-add-options strict_std }
 
 #include <ranges>
 #include <limits>
diff --git a/libstdc++-v3/testsuite/std/ranges/subrange/96042.cc b/libstdc++-v3/testsuite/std/ranges/subrange/96042.cc
index bc22f999ed8..3856952eeb3 100644
--- a/libstdc++-v3/testsuite/std/ranges/subrange/96042.cc
+++ b/libstdc++-v3/testsuite/std/ranges/subrange/96042.cc
@@ -15,8 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=c++20" }
-// { dg-do compile { target c++2a } }
+// { dg-do compile { target c++20 } }
+// { dg-add-options strict_std }
 
 #include <ranges>
 #include <limits>