locale_conv.h (wstring_convert, [...]): New.

	* include/bits/locale_conv.h (wstring_convert, wbuffer_convert): New.
	* include/std/locale: Include new header.
	* include/Makefile.am: Add it.
	* include/Makefile.in: Regenerate.
	* testsuite/22_locale/conversions/buffer/requirements/typedefs.cc: New.
	* testsuite/22_locale/conversions/string/1.cc: New.
	* testsuite/22_locale/conversions/string/2.cc: New.
	* testsuite/22_locale/conversions/string/requirements/typedefs.cc: New.
	* testsuite/22_locale/conversions/string/requirements/typedefs-2.cc:
	New.

From-SVN: r219780

5 files changed, 245 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/22_locale/conversions/buffer/requirements/typedefs.cc b/libstdc++-v3/testsuite/22_locale/conversions/buffer/requirements/typedefs.cc
new file mode 100644
index 0000000..c59c6d6
--- /dev/null
+++ b/libstdc++-v3/testsuite/22_locale/conversions/buffer/requirements/typedefs.cc
@@ -0,0 +1,36 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++11" }
+
+// Copyright (C) 2012 Free Software Foundation
+//
+// 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/>.
+
+// 22.3.3.2.3  Buffer conversions
+
+#include <locale>
+#include <type_traits>
+
+void test01()
+{
+  // Check for required typedefs
+  struct cvt_type : std::codecvt<wchar_t, char, mbstate_t> { };
+  typedef std::char_traits<wchar_t> traits_type;
+  typedef std::wbuffer_convert<cvt_type, wchar_t, traits_type> test_type;
+  typedef test_type::state_type state_type;
+
+  static_assert( std::is_same<cvt_type::state_type, state_type>::value,
+		 "state type" );
+}
diff --git a/libstdc++-v3/testsuite/22_locale/conversions/string/1.cc b/libstdc++-v3/testsuite/22_locale/conversions/string/1.cc
new file mode 100644
index 0000000..c2ab6e7
--- /dev/null
+++ b/libstdc++-v3/testsuite/22_locale/conversions/string/1.cc
@@ -0,0 +1,74 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++11" }
+
+// Copyright (C) 2012 Free Software Foundation
+//
+// 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/>.
+
+// 22.3.3.2.2  String conversions
+
+#include <locale>
+#include <string>
+#include <testsuite_hooks.h>
+
+template<typename Elem>
+struct cvt : std::codecvt<Elem, char, std::mbstate_t> { };
+
+template<typename Elem>
+using str_conv = std::wstring_convert<cvt<Elem>, Elem>;
+
+using std::string;
+using std::wstring;
+
+void test01()
+{
+  typedef str_conv<char> sc;  // noconv
+  sc c;
+  string input = "King for a day...";
+  string output = c.from_bytes(input);
+  VERIFY( input == output );
+  VERIFY( c.converted() == output.length() );
+  string roundtrip = c.to_bytes(output);
+  VERIFY( input == roundtrip );
+  VERIFY( c.converted() == roundtrip.length() );
+}
+
+void test02()
+{
+  typedef str_conv<wchar_t> wsc;
+  wsc c;
+  string input = "Fool for a lifetime";
+  wstring output = c.from_bytes(input);
+  VERIFY( c.converted() == output.length() );
+  VERIFY( L"Fool for a lifetime" == output );
+  string roundtrip = c.to_bytes(output);
+  VERIFY( input == roundtrip );
+  VERIFY( c.converted() == roundtrip.length() );
+
+  VERIFY( c.from_bytes(input[0]) == output.substr(0, 1) );
+  VERIFY( c.from_bytes(input.c_str()) == output );
+  VERIFY( c.from_bytes(input.data(), input.data()+input.size()) == output );
+
+  VERIFY( c.to_bytes(output[0]) == input.substr(0, 1) );
+  VERIFY( c.to_bytes(output.c_str()) == input );
+  VERIFY( c.to_bytes(output.data(), output.data()+output.size()) == input );
+}
+
+int main()
+{
+  test01();
+  test02();
+}
diff --git a/libstdc++-v3/testsuite/22_locale/conversions/string/2.cc b/libstdc++-v3/testsuite/22_locale/conversions/string/2.cc
new file mode 100644
index 0000000..94eb75f
--- /dev/null
+++ b/libstdc++-v3/testsuite/22_locale/conversions/string/2.cc
@@ -0,0 +1,60 @@
+// { dg-options "-std=gnu++11" }
+
+// Copyright (C) 2012 Free Software Foundation
+//
+// 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/>.
+
+// 22.3.3.2.2  String conversions
+
+#include <locale>
+#include <string>
+#include <testsuite_hooks.h>
+
+template<typename Elem>
+struct cvt : std::codecvt<Elem, char, std::mbstate_t> { };
+
+template<typename Elem>
+using str_conv = std::wstring_convert<cvt<Elem>, Elem>;
+
+using std::string;
+using std::wstring;
+
+// test conversion errors, with and without error strings
+
+void test01()
+{
+  typedef str_conv<wchar_t> sc;
+
+  const sc::byte_string berr = "invalid wide string";
+  const sc::wide_string werr = L"invalid byte string";
+
+  sc c(berr, werr);
+  string input = "Stop";
+  input += char(0xff);
+  input += char(0xff);
+  wstring woutput = c.from_bytes(input);
+  VERIFY( werr == woutput );
+  wstring winput = L"Stop";
+  winput += wchar_t(0xff);
+  winput += wchar_t(0xff);
+  string output = c.to_bytes(winput);
+  VERIFY( berr == output );
+}
+
+int main()
+{
+  test01();
+}
diff --git a/libstdc++-v3/testsuite/22_locale/conversions/string/requirements/typedefs-2.cc b/libstdc++-v3/testsuite/22_locale/conversions/string/requirements/typedefs-2.cc
new file mode 100644
index 0000000..65a1458
--- /dev/null
+++ b/libstdc++-v3/testsuite/22_locale/conversions/string/requirements/typedefs-2.cc
@@ -0,0 +1,41 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++11" }
+
+// Copyright (C) 2012 Free Software Foundation
+//
+// 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/>.
+
+// 22.3.3.2.2  String conversions
+
+#include <locale>
+#include <string>
+#include <type_traits>
+#include <testsuite_allocator.h>
+
+template<typename T>
+  using alloc = __gnu_test::uneq_allocator<T>;
+
+template<typename C>
+  using Str = std::basic_string<C, std::char_traits<C>, alloc<C>>;
+
+struct cvt : std::codecvt<wchar_t, char, std::mbstate_t> { };
+
+using wconv = std::wstring_convert<cvt, wchar_t, alloc<wchar_t>, alloc<char>>;
+
+static_assert( std::is_same<wconv::byte_string, Str<char>>::value,
+	       "byte string is std::string" );
+static_assert( std::is_same<wconv::wide_string, Str<wchar_t>>::value,
+	       "wide string is std::wstring" );
diff --git a/libstdc++-v3/testsuite/22_locale/conversions/string/requirements/typedefs.cc b/libstdc++-v3/testsuite/22_locale/conversions/string/requirements/typedefs.cc
new file mode 100644
index 0000000..baed16e
--- /dev/null
+++ b/libstdc++-v3/testsuite/22_locale/conversions/string/requirements/typedefs.cc
@@ -0,0 +1,34 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++11" }
+
+// Copyright (C) 2012 Free Software Foundation
+//
+// 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/>.
+
+// 22.3.3.2.2  String conversions
+
+#include <locale>
+
+void test01()
+{
+  // Check for required typedefs
+  typedef std::codecvt<wchar_t, char, mbstate_t> codecvt_type;
+  typedef std::wstring_convert<codecvt_type> test_type;
+  typedef test_type::byte_string byte_string;
+  typedef test_type::wide_string wide_string;
+  typedef test_type::state_type state_type;
+  typedef test_type::int_type int_type;
+}