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+// 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 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++11 -lstdc++fs" }
+// { dg-require-filesystem-ts "" }
+
+// 15.4 Copy [fs.op.copy_file]
+
+#include <experimental/filesystem>
+#include <fstream>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ bool test __attribute__((unused)) = false;
+ using std::experimental::filesystem::copy_options;
+ std::error_code ec;
+
+ auto from = __gnu_test::nonexistent_path();
+ auto to = __gnu_test::nonexistent_path();
+
+ // test non-existent file
+ bool b = copy_file(from, to, ec);
+ VERIFY( !b );
+ VERIFY( ec );
+ VERIFY( !exists(to) );
+
+ // test empty file
+ std::ofstream{from.native()};
+ VERIFY( exists(from) );
+ VERIFY( file_size(from) == 0 );
+
+ b = copy_file(from, to);
+ VERIFY( b );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == 0 );
+ remove(to);
+ VERIFY( !exists(to) );
+ b = copy_file(from, to, copy_options::none, ec);
+ VERIFY( b );
+ VERIFY( !ec );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == 0 );
+
+ std::ofstream{from.native()} << "Hello, filesystem!";
+ VERIFY( file_size(from) != 0 );
+ remove(to);
+ VERIFY( !exists(to) );
+ b = copy_file(from, to);
+ VERIFY( b );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == file_size(from) );
+ remove(to);
+ VERIFY( !exists(to) );
+ b = copy_file(from, to);
+ VERIFY( b );
+ VERIFY( !ec );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == file_size(from) );
+}
+
+int
+main()
+{
+ test01();
+}