@@ -378,7 +378,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
constexpr bool _M_is_engaged() const noexcept
{ return this->_M_engaged; }
- _Tp&
+ constexpr _Tp&
_M_get() noexcept
{ return _M_payload; }
@@ -777,7 +777,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
? std::move(this->_M_get())
: static_cast<_Tp>(std::forward<_Up>(__u));
}
- void reset() { this->_M_reset(); }
+ void reset() noexcept { this->_M_reset(); }
};
template<typename _Tp>
new file mode 100644
@@ -0,0 +1,31 @@
+// { dg-options "-std=gnu++17" }
+// { dg-do run }
+
+// 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.
+
+// You should have received a moved_to of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <optional>
+#include <testsuite_hooks.h>
+
+int main()
+{
+ std::optional<int> o{666};
+ VERIFY(o && *o == 666);
+ o.reset();
+ VERIFY(!o);
+ static_assert(noexcept(std::declval<std::optional<int>>().reset()));
+}
new file mode 100644
@@ -0,0 +1,39 @@
+// { dg-options "-std=gnu++17" }
+// { dg-do run }
+
+// 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.
+
+// You should have received a moved_to of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <optional>
+#include <testsuite_hooks.h>
+
+struct Y
+{
+ constexpr int test() & {return 7;}
+};
+
+constexpr int
+test()
+{
+ std::optional<Y> opt{Y{}};
+ return opt.value().test();
+}
+
+int main()
+{
+ static_assert(test());
+}