1 files changed, 112 insertions, 0 deletions
diff --git a/libstdc++-v3/src/future.cc b/libstdc++-v3/src/future.cc
new file mode 100644
index 000000000..d6149cbbf
--- /dev/null
+++ b/libstdc++-v3/src/future.cc
@@ -0,0 +1,112 @@
+// future -*- C++ -*-
+
+// Copyright (C) 2009, 2010, 2011 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/>.
+
+#include <future>
+
+namespace
+{
+  struct future_error_category : public std::error_category
+  {
+    future_error_category() {}
+
+    virtual const char*
+    name() const 
+    { return "future"; }
+
+    virtual std::string message(int __ec) const
+    {
+      std::string __msg;
+      switch (std::future_errc(__ec))
+      {
+      case std::future_errc::broken_promise:
+          __msg = "Broken promise";
+          break;
+      case std::future_errc::future_already_retrieved:
+          __msg = "Future already retrieved";
+          break;
+      case std::future_errc::promise_already_satisfied:
+          __msg = "Promise already satisfied";
+          break;
+      case std::future_errc::no_state:
+          __msg = "No associated state";
+          break;
+      default:
+          __msg = "Unknown error";
+          break;
+      }
+      return __msg;
+    }
+  };
+
+  const future_error_category&
+  __future_category_instance()
+  {
+    static const future_error_category __fec;
+    return __fec;
+  }
+}
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  const error_category& future_category()
+  { return __future_category_instance(); }
+
+  future_error::~future_error() throw() { }
+
+  const char* 
+  future_error::what() const throw() { return _M_code.message().c_str(); }
+
+#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1) \
+  && defined(_GLIBCXX_ATOMIC_BUILTINS_4)
+  __future_base::_Result_base::_Result_base() = default;
+
+  __future_base::_Result_base::~_Result_base() = default;
+
+  __future_base::_State_base::~_State_base() = default;
+#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+// XXX GLIBCXX_ABI Deprecated
+// gcc-4.6.0
+// <future> export changes
+#if defined(_GLIBCXX_SYMVER_GNU) && defined(PIC) \
+    && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
+    && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+  const std::error_category* future_category = &__future_category_instance();
+}
+
+#define _GLIBCXX_ASM_SYMVER(cur, old, version) \
+   asm (".symver " #cur "," #old "@@@" #version);
+
+_GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx15future_categoryE, _ZSt15future_category, GLIBCXX_3.4.14)
+
+#endif
+