* [v3 PATCH] Add a new header for diagnosing the use of C++17 facilities in pre-C++17 modes.
@ 2016-07-06 14:44 Ville Voutilainen
2016-07-06 17:11 ` Ville Voutilainen
0 siblings, 1 reply; 3+ messages in thread
From: Ville Voutilainen @ 2016-07-06 14:44 UTC (permalink / raw)
To: gcc-patches, libstdc++
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2016-07-06 Ville Voutilainen <ville.voutilainen@gmail.com>
Add a new header for diagnosing the use of C++17 facilities
in pre-C++17 modes.
* include/bits/c++17_warning.h: New.
[-- Attachment #2: cpp17_header.diff --]
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diff --git a/libstdc++-v3/include/bits/c++17_warning.h b/libstdc++-v3/include/bits/c++17_warning.h
new file mode 100644
index 0000000..e7cca46
--- /dev/null
+++ b/libstdc++-v3/include/bits/c++17_warning.h
@@ -0,0 +1,37 @@
+// Copyright (C) 2016 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/c++17_warning.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iosfwd}
+ */
+
+#ifndef _CXX17_WARNING_H
+#define _CXX17_WARNING_H 1
+
+#if __cplusplus > 201402L
+#error This file requires compiler and library support \
+for the ISO C++ 2017 standard. This support must be enabled \
+with the -std=c++17 or -std=gnu++17 compiler options.
+#endif
+
+#endif
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [v3 PATCH] Add a new header for diagnosing the use of C++17 facilities in pre-C++17 modes.
2016-07-06 14:44 [v3 PATCH] Add a new header for diagnosing the use of C++17 facilities in pre-C++17 modes Ville Voutilainen
@ 2016-07-06 17:11 ` Ville Voutilainen
2016-07-06 17:58 ` Jonathan Wakely
0 siblings, 1 reply; 3+ messages in thread
From: Ville Voutilainen @ 2016-07-06 17:11 UTC (permalink / raw)
To: gcc-patches, libstdc++
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On 6 July 2016 at 17:44, Ville Voutilainen <ville.voutilainen@gmail.com> wrote:
> 2016-07-06 Ville Voutilainen <ville.voutilainen@gmail.com>
>
> Add a new header for diagnosing the use of C++17 facilities
> in pre-C++17 modes.
> * include/bits/c++17_warning.h: New.
Urgh, the test in the header is completely wrong. Fixed patch attached.
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diff --git a/libstdc++-v3/include/bits/c++17_warning.h b/libstdc++-v3/include/bits/c++17_warning.h
new file mode 100644
index 0000000..66ac196
--- /dev/null
+++ b/libstdc++-v3/include/bits/c++17_warning.h
@@ -0,0 +1,37 @@
+// Copyright (C) 2016 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/c++17_warning.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iosfwd}
+ */
+
+#ifndef _CXX17_WARNING_H
+#define _CXX17_WARNING_H 1
+
+#if __cplusplus <= 201402L
+#error This file requires compiler and library support \
+for the ISO C++ 2017 standard. This support must be enabled \
+with the -std=c++17 or -std=gnu++17 compiler options.
+#endif
+
+#endif
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [v3 PATCH] Add a new header for diagnosing the use of C++17 facilities in pre-C++17 modes.
2016-07-06 17:11 ` Ville Voutilainen
@ 2016-07-06 17:58 ` Jonathan Wakely
0 siblings, 0 replies; 3+ messages in thread
From: Jonathan Wakely @ 2016-07-06 17:58 UTC (permalink / raw)
To: Ville Voutilainen; +Cc: gcc-patches, libstdc++
On 06/07/16 20:11 +0300, Ville Voutilainen wrote:
>> Add a new header for diagnosing the use of C++17 facilities
>> in pre-C++17 modes.
>> * include/bits/c++17_warning.h: New.
>
>Urgh, the test in the header is completely wrong. Fixed patch attached.
OK for trunk.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-07-06 14:44 [v3 PATCH] Add a new header for diagnosing the use of C++17 facilities in pre-C++17 modes Ville Voutilainen
2016-07-06 17:11 ` Ville Voutilainen
2016-07-06 17:58 ` Jonathan Wakely
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