Define C++11 version of std::ios_base::failure.

	* config/abi/pre/gnu.ver: Add new exports.
	* include/bits/ios_base.h (ios_base::failure): New definition using
	abi_tag.
	(io_errc, make_error_code, make_error_category, iostream_category):
	Define.
	* include/std/system_error (system_error): Add char* constructors.
	* src/c++11/Makefile.am: Add new file.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++11/cxx11-ios_failure.cc: New file.
	* src/c++98/ios_failure.cc: Compile old definition without abi_tag.
	* testsuite/27_io/ios_base/failure/cxx11.cc: New.
	* testsuite/27_io/ios_base/failure/what-1.cc: Allow string returned by
	ios_base::failure::what() to contain additional data.
	* testsuite/27_io/ios_base/failure/what-2.cc: Likewise..
	* testsuite/27_io/ios_base/failure/what-3.cc: Likewise..
	* testsuite/27_io/ios_base/failure/what-big.cc: Likewise..

From-SVN: r217559

4 files changed, 110 insertions, 6 deletions

diff --git a/libstdc++-v3/src/c++11/Makefile.am b/libstdc++-v3/src/c++11/Makefile.am
index c8507ce..71306db 100644
--- a/libstdc++-v3/src/c++11/Makefile.am
+++ b/libstdc++-v3/src/c++11/Makefile.am
@@ -39,6 +39,13 @@ ctype_configure_char.cc: ${glibcxx_srcdir}/$(OS_INC_SRCDIR)/ctype_configure_char
 ctype_members.cc: ${glibcxx_srcdir}/$(CCTYPE_CC)
 	$(LN_S) ${glibcxx_srcdir}/$(CCTYPE_CC) . || true
 
+if ENABLE_CXX11_ABI
+cxx11_abi_sources = \
+	cxx11-ios_failure.cc
+else
+cxx11_abi_sources =
+endif
+
 sources = \
 	chrono.cc \
 	condition_variable.cc \
@@ -59,6 +66,7 @@ sources = \
 	snprintf_lite.cc \
 	system_error.cc \
 	thread.cc \
+	${cxx11_abi_sources} \
 	${host_sources}
 
 if ENABLE_EXTERN_TEMPLATE
diff --git a/libstdc++-v3/src/c++11/Makefile.in b/libstdc++-v3/src/c++11/Makefile.in
index fd3e780..dd9e110 100644
--- a/libstdc++-v3/src/c++11/Makefile.in
+++ b/libstdc++-v3/src/c++11/Makefile.in
@@ -67,19 +67,20 @@ CONFIG_CLEAN_FILES =
 CONFIG_CLEAN_VPATH_FILES =
 LTLIBRARIES = $(noinst_LTLIBRARIES)
 libc__11convenience_la_LIBADD =
-am__objects_1 = ctype_configure_char.lo ctype_members.lo
-am__objects_2 = chrono.lo condition_variable.lo ctype.lo debug.lo \
+@ENABLE_CXX11_ABI_TRUE@am__objects_1 = cxx11-ios_failure.lo
+am__objects_2 = ctype_configure_char.lo ctype_members.lo
+am__objects_3 = chrono.lo condition_variable.lo ctype.lo debug.lo \
 	functexcept.lo functional.lo future.lo hash_c++0x.lo \
 	hashtable_c++0x.lo ios.lo limits.lo mutex.lo placeholders.lo \
 	random.lo regex.lo shared_ptr.lo snprintf_lite.lo \
-	system_error.lo thread.lo $(am__objects_1)
-@ENABLE_EXTERN_TEMPLATE_TRUE@am__objects_3 = ext11-inst.lo \
+	system_error.lo thread.lo $(am__objects_1) $(am__objects_2)
+@ENABLE_EXTERN_TEMPLATE_TRUE@am__objects_4 = ext11-inst.lo \
 @ENABLE_EXTERN_TEMPLATE_TRUE@	fstream-inst.lo ios-inst.lo \
 @ENABLE_EXTERN_TEMPLATE_TRUE@	iostream-inst.lo istream-inst.lo \
 @ENABLE_EXTERN_TEMPLATE_TRUE@	ostream-inst.lo sstream-inst.lo \
 @ENABLE_EXTERN_TEMPLATE_TRUE@	streambuf-inst.lo string-inst.lo \
 @ENABLE_EXTERN_TEMPLATE_TRUE@	wstring-inst.lo
-am_libc__11convenience_la_OBJECTS = $(am__objects_2) $(am__objects_3)
+am_libc__11convenience_la_OBJECTS = $(am__objects_3) $(am__objects_4)
 libc__11convenience_la_OBJECTS = $(am_libc__11convenience_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp =
@@ -322,6 +323,10 @@ host_sources = \
 	ctype_configure_char.cc \
 	ctype_members.cc
 
+@ENABLE_CXX11_ABI_FALSE@cxx11_abi_sources = 
+@ENABLE_CXX11_ABI_TRUE@cxx11_abi_sources = \
+@ENABLE_CXX11_ABI_TRUE@	cxx11-ios_failure.cc
+
 sources = \
 	chrono.cc \
 	condition_variable.cc \
@@ -342,6 +347,7 @@ sources = \
 	snprintf_lite.cc \
 	system_error.cc \
 	thread.cc \
+	${cxx11_abi_sources} \
 	${host_sources}
 
 # XTEMPLATE_FLAGS =
diff --git a/libstdc++-v3/src/c++11/cxx11-ios_failure.cc b/libstdc++-v3/src/c++11/cxx11-ios_failure.cc
new file mode 100644
index 0000000..143d70e
--- /dev/null
+++ b/libstdc++-v3/src/c++11/cxx11-ios_failure.cc
@@ -0,0 +1,89 @@
+// Iostreams base classes -*- C++ -*-
+
+// Copyright (C) 2014 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+//
+// ISO C++ 14882:2011: 27.5.3.1.1  Class ios_base::failure
+//
+
+#include <ios>
+
+namespace
+{
+  struct io_error_category : std::error_category
+  {
+    virtual const char*
+    name() const noexcept
+    { return "iostream"; }
+
+    virtual std::string message(int __ec) const
+    {
+      std::string __msg;
+      switch (std::io_errc(__ec))
+      {
+      case std::io_errc::stream:
+          __msg = "iostream error";
+          break;
+      default:
+          __msg = "Unknown error";
+          break;
+      }
+      return __msg;
+    }
+  };
+
+  const io_error_category&
+  __io_category_instance() noexcept
+  {
+    static const io_error_category __ec{};
+    return __ec;
+  }
+
+} // namespace
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  const error_category&
+  iostream_category() noexcept
+  { return __io_category_instance(); }
+
+  ios_base::failure::failure(const string& __str)
+  : system_error(io_errc::stream, __str) { }
+
+  ios_base::failure::failure(const string& __str, const error_code& __ec)
+  : system_error(__ec, __str) { }
+
+  ios_base::failure::failure(const char* __str, const error_code& __ec)
+  : system_error(__ec, __str) { }
+
+  ios_base::failure::~failure()
+  { }
+
+  const char*
+  ios_base::failure::what() const throw()
+  { return runtime_error::what(); }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
diff --git a/libstdc++-v3/src/c++98/ios_failure.cc b/libstdc++-v3/src/c++98/ios_failure.cc
index 9d32e51..0f45178 100644
--- a/libstdc++-v3/src/c++98/ios_failure.cc
+++ b/libstdc++-v3/src/c++98/ios_failure.cc
@@ -23,9 +23,10 @@
 // <http://www.gnu.org/licenses/>.
 
 //
-// ISO C++ 14882: 27.4.2.1.1  Class ios_base::failure
+// ISO C++ 14882:1998: 27.4.2.1.1  Class ios_base::failure
 //
 
+#define _GLIBCXX_USE_CXX11_ABI 0
 #include <ios>
 
 namespace std _GLIBCXX_VISIBILITY(default)