X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Flibsupc%2B%2B%2Fexception_ptr.h;h=c0316fd64e30ecf9f7848ec9159b4c5993492d87;hb=5846aeac295f326ca48b7aad94a67003aa919166;hp=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hpb=1e98231f1669256fbdd37d6ff8a7020c85dcc4cc;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/libstdc++-v3/libsupc++/exception_ptr.h b/libstdc++-v3/libsupc++/exception_ptr.h
index e69de29bb2d..c0316fd64e3 100644
--- a/libstdc++-v3/libsupc++/exception_ptr.h
+++ b/libstdc++-v3/libsupc++/exception_ptr.h
@@ -0,0 +1,191 @@
+// Exception Handling support header (exception_ptr class) for -*- C++ -*-
+
+// Copyright (C) 2008, 2009 Free Software Foundation
+//
+// This file is part of GCC.
+//
+// GCC 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.
+// 
+// GCC 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/>.
+
+/** @file exception_ptr.h
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{exception}
+ */
+
+#ifndef _EXCEPTION_PTR_H
+#define _EXCEPTION_PTR_H
+
+#pragma GCC visibility push(default)
+
+#include <bits/c++config.h>
+#include <exception_defines.h>
+
+#if !defined(_GLIBCXX_ATOMIC_BUILTINS_4)
+#  error This platform does not support exception propagation.
+#endif
+
+extern "C++" {
+
+namespace std 
+{
+  /**
+   * @addtogroup exceptions
+   * @{
+   */
+  namespace __exception_ptr
+  {
+    class exception_ptr;
+  }
+
+  using __exception_ptr::exception_ptr;
+
+  /** Obtain an exception_ptr to the currently handled exception. If there
+   *  is none, or the currently handled exception is foreign, return the null
+   *  value.
+   */
+  exception_ptr current_exception() throw();
+
+  /// Throw the object pointed to by the exception_ptr.
+  void rethrow_exception(exception_ptr) __attribute__ ((__noreturn__));
+
+  namespace __exception_ptr
+  {
+    /**
+     *  @brief An opaque pointer to an arbitrary exception.
+     *  @ingroup exceptions
+     */
+    class exception_ptr
+    {
+      void* _M_exception_object;
+
+      explicit exception_ptr(void* __e) throw();
+
+      void _M_addref() throw();
+      void _M_release() throw();
+
+      void *_M_get() const throw() __attribute__ ((__pure__));
+
+      friend exception_ptr std::current_exception() throw();
+      friend void std::rethrow_exception(exception_ptr);
+
+    public:
+      exception_ptr() throw();
+
+      exception_ptr(const exception_ptr&) throw();
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      exception_ptr(nullptr_t) throw()
+      : _M_exception_object(0)
+      { }
+
+      exception_ptr(exception_ptr&& __o) throw()
+      : _M_exception_object(__o._M_exception_object)
+      { __o._M_exception_object = 0; }
+#else
+      typedef void (exception_ptr::*__safe_bool)();
+
+      // For construction from nullptr or 0.
+      exception_ptr(__safe_bool) throw();
+#endif
+
+      exception_ptr& 
+      operator=(const exception_ptr&) throw();
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      exception_ptr& 
+      operator=(exception_ptr&& __o) throw()
+      {
+        exception_ptr(static_cast<exception_ptr&&>(__o)).swap(*this);
+        return *this;
+      }
+#endif
+
+      ~exception_ptr() throw();
+
+      void 
+      swap(exception_ptr&) throw();
+
+#ifdef _GLIBCXX_EH_PTR_COMPAT
+      // Retained for compatibility with CXXABI_1.3.
+      void _M_safe_bool_dummy() throw() __attribute__ ((__const__));
+      bool operator!() const throw() __attribute__ ((__pure__));
+      operator __safe_bool() const throw();
+#endif
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      explicit operator bool() const
+      { return _M_exception_object; }
+#endif
+
+      friend bool 
+      operator==(const exception_ptr&, const exception_ptr&) throw() 
+      __attribute__ ((__pure__));
+
+      const type_info*
+      __cxa_exception_type() const throw() __attribute__ ((__pure__));
+    };
+
+    bool 
+    operator==(const exception_ptr&, const exception_ptr&) throw() 
+    __attribute__ ((__pure__));
+
+    bool 
+    operator!=(const exception_ptr&, const exception_ptr&) throw() 
+    __attribute__ ((__pure__));
+
+    inline void
+    swap(exception_ptr& __lhs, exception_ptr& __rhs)
+    { __lhs.swap(__rhs); }
+
+  } // namespace __exception_ptr
+
+
+  /// Obtain an exception_ptr pointing to a copy of the supplied object.
+  template<typename _Ex>
+    exception_ptr 
+    copy_exception(_Ex __ex) throw()
+    {
+      __try
+	{
+#ifdef __EXCEPTIONS
+	  throw __ex;
+#endif
+	}
+      __catch(...)
+	{
+	  return current_exception();
+	}
+    }
+
+  // _GLIBCXX_RESOLVE_LIB_DEFECTS
+  // 1130. copy_exception name misleading
+  /// Obtain an exception_ptr pointing to a copy of the supplied object.
+  template<typename _Ex>
+    exception_ptr 
+    make_exception_ptr(_Ex __ex) throw()
+    { return std::copy_exception<_Ex>(__ex); }
+
+  // @} group exceptions
+} // namespace std
+
+} // extern "C++"
+
+#pragma GCC visibility pop
+
+#endif