Implement uniform container erasure for C++20.

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 23_containers / deque / erasure.cc

diff --git a/libstdc++-v3/testsuite/23_containers/deque/erasure.cc b/libstdc++-v3/testsuite/23_containers/deque/erasure.cc
new file mode 100644 (file)
index 0000000..1fe6273
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/deque/erasure.cc
@@ -0,0 +1,52 @@
+// { dg-do run { target c++2a } }
+
+// Copyright (C) 2018 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/>.
+
+#include <deque>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  auto is_odd = [](const int i) { return i % 2 != 0; };
+
+  std::deque<int> d{ 10, 11, 12, 14, 15, 17, 18, 19 };
+  std::erase_if(d, is_odd);
+  std::deque<int> t{ 10, 12, 14, 18 };
+  VERIFY( d == t );
+}
+
+void
+test02()
+{
+  std::deque<int> d{ 10, 11, 12, 14, 15, 17, 18, 19 };
+  std::erase(d, 14);
+  std::deque<int> t{ 10, 11, 12, 15, 17, 18, 19 };
+  VERIFY( d == t );
+  std::erase(d, 20);
+  VERIFY( d == t );
+}
+
+int
+main()
+{
+  test01();
+  test02();
+
+  return 0;
+}