Copy string_view tests from libstdc++

[thirdparty/binutils-gdb.git] / gdb / unittests / basic_string_view / cons / char / 1.cc

diff --git a/gdb/unittests/basic_string_view/cons/char/1.cc b/gdb/unittests/basic_string_view/cons/char/1.cc
new file mode 100644 (file)
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+++ b/gdb/unittests/basic_string_view/cons/char/1.cc
@@ -0,0 +1,68 @@
+// { dg-options "-std=gnu++17" }
+
+// Copyright (C) 2013-2018 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/>.
+
+// basic_string_view constructors.
+
+#include <string_view>
+#include <string>
+#include <cstring>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  typedef std::string_view::size_type csize_type;
+
+  // basic_string_view()
+  const std::string_view str00{};
+  VERIFY( str00.length() == 0 );
+  VERIFY( str00.data() == nullptr );
+
+  // basic_string_view(const char*)
+  const char str_lit01[] = "rodeo beach, marin";
+  const std::string_view str01{str_lit01};
+  VERIFY( str01.length() == 18 );
+  VERIFY( str01.data() == str_lit01 );
+  const std::string_view str02{"baker beach, san francisco"};
+  VERIFY( str02.length() == 26 );
+
+  // basic_string_view(const string_view&)
+  std::string_view str04{str01};
+  VERIFY( str04.length() == str01.length() );
+  VERIFY( str04.data() == str01.data() );
+
+  // basic_string_view(const char* s)
+  csize_type len_lit01 = strlen(str_lit01);
+  std::string_view str05{str_lit01, len_lit01};
+  VERIFY( str05.length() == len_lit01 );
+  VERIFY( str05.data() == str_lit01 );
+
+  // basic_string_view(basic_string& s)
+  std::string istr07(10, 'z');
+  std::string_view str07{istr07};
+  VERIFY( str07.length() == 10 );
+}
+
+int
+main()
+{ 
+  test01();
+
+  return 0;
+}