re PR libstdc++/65630 (operator+ for new std::string not exported)

	PR libstdc++/65630
	* config/abi/pre/gnu.ver: Export operator+ for new strings.
	* testsuite/21_strings/basic_string/operators/char/65630.cc: New.
	* testsuite/21_strings/basic_string/operators/wchar_t/65630.cc: New.

From-SVN: r221775

libstdc++-v3/ChangeLog

+2015-03-30  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/65630
+	* config/abi/pre/gnu.ver: Export operator+ for new strings.
+	* testsuite/21_strings/basic_string/operators/char/65630.cc: New.
+	* testsuite/21_strings/basic_string/operators/wchar_t/65630.cc: New.
+
 2015-03-28  Tim Shen  <timshen@google.com>
 
 	PR libstdc++/65420

libstdc++-v3/config/abi/pre/gnu.ver

@@ -1675,6 +1675,9 @@ GLIBCXX_3.4.21 {
     _ZNSt7__cxx1112basic_string*;
     _ZNKSt7__cxx1112basic_string*;
 
+    # operator+ for ABI-tagged std::basic_string
+    _ZStplI[cw]St11char_traitsI[cw]ESaI[cw]EENSt7__cxx1112basic_stringIT_T0_T1_EE*;
+
     # ABI-tagged stringstreams
     _ZNSt7__cxx1115basic_stringbuf*;
     _ZNSt7__cxx1118basic_stringstream*;

libstdc++-v3/testsuite/21_strings/basic_string/operators/char/65630.cc

+// Copyright (C) 2015 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 -fno-implicit-templates -O0" }
+// { dg-do link }
+
+#include <string>
+
+void test01()
+{
+  std::string t;
+  t = t + t;
+  t = "" + t;
+  t = 't' + t;
+}
+
+int main()
+{
+  test01();
+}

libstdc++-v3/testsuite/21_strings/basic_string/operators/wchar_t/65630.cc

+// Copyright (C) 2015 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 -fno-implicit-templates -O0" }
+// { dg-do link }
+
+#include <string>
+
+void test01()
+{
+  std::wstring t;
+  t = t + t;
+  t = L"" + t;
+  t = L't' + t;
+}
+
+int main()
+{
+  test01();
+}