similarity index 100%
rename from libstdc++-v3/testsuite/24_iterators/range_access.cc
rename to libstdc++-v3/testsuite/24_iterators/range_access/range_access.cc
similarity index 100%
rename from libstdc++-v3/testsuite/24_iterators/range_access_cpp14.cc
rename to libstdc++-v3/testsuite/24_iterators/range_access/range_access_cpp14.cc
similarity index 100%
rename from libstdc++-v3/testsuite/24_iterators/range_access_cpp17.cc
rename to libstdc++-v3/testsuite/24_iterators/range_access/range_access_cpp17.cc
similarity index 100%
rename from libstdc++-v3/testsuite/24_iterators/range_access_cpp17_neg.cc
rename to libstdc++-v3/testsuite/24_iterators/range_access/range_access_cpp17_neg.cc
similarity index 100%
rename from libstdc++-v3/testsuite/24_iterators/range_access_cpp20.cc
rename to libstdc++-v3/testsuite/24_iterators/range_access/range_access_cpp20.cc
new file mode 100644
@@ -0,0 +1,49 @@
+// Copyright (C) 2019 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.
+
+// You should have received a copy of the GNU General Public License along
+// 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 } }
+
+#include <iterator>
+
+void
+test01()
+{
+ struct C { unsigned size() { return 0u; } };
+ C c;
+ std::ssize(c); // { dg-error "no matching function" }
+}
+// { dg-error "discards qualifiers" "" { target *-*-* } 0 }
+
+void
+test02()
+{
+ struct C { bool size() { return false; } };
+ C c;
+ std::ssize(c); // { dg-error "no matching function" }
+}
+// { dg-error "incomplete type .*make_signed.*bool" "" { target *-*-* } 0 }
+
+void
+test03()
+{
+ struct S { };
+ struct C { S size() { return {}; } };
+ C c;
+ std::ssize(c); // { dg-error "no matching function" }
+}
+// { dg-error "incomplete type .*make_signed.*S" "" { target *-*-* } 0 }
This precondition is the subject of a national body comment on the C++20 CD. This just adds a test to ensure we enforce the precondition. Also move existing 24_iterator/range_access*.cc tests to a dedicated directory for the [iterator.range] subclause. * testsuite/24_iterators/range_access*.cc: Move to ... * testsuite/24_iterators/range_access/range_access*.cc: ... here. * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc: New test. Tested powerpc64le-linux, committed to trunk. commit 5334edd3fcf1834c514be08bda2f8f7c82ab1148 Author: Jonathan Wakely <jwakely@redhat.com> Date: Thu Oct 31 08:39:43 2019 +0000 Check precondition for std::ssize(const Container&) This precondition is the subject of a national body comment on the C++20 CD. This just adds a test to ensure we enforce the precondition. Also move existing 24_iterator/range_access*.cc tests to a dedicated directory for the [iterator.range] subclause. * testsuite/24_iterators/range_access*.cc: Move to ... * testsuite/24_iterators/range_access/range_access*.cc: ... here. * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc: New test.