// Exception Handling support header for -*- C++ -*-
-// Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001 Free Software Foundation
+// Copyright (C) 1995-2014 Free Software Foundation, Inc.
//
-// This file is part of GNU CC.
+// This file is part of GCC.
//
-// GNU CC is free software; you can redistribute it and/or modify
+// 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 2, or (at your option)
+// the Free Software Foundation; either version 3, or (at your option)
// any later version.
-//
-// GNU CC is distributed in the hope that it will be useful,
+//
+// 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.
-//
-// You should have received a copy of the GNU General Public License
-// along with GNU CC; see the file COPYING. If not, write to
-// the Free Software Foundation, 59 Temple Place - Suite 330,
-// Boston, MA 02111-1307, USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
+//
+// 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
- * This header defines several types and functions relating to the
- * handling of exceptions in a C++ program.
+ * This is a Standard C++ Library header.
*/
#ifndef __EXCEPTION__
#define __EXCEPTION__
+#pragma GCC system_header
+
+#pragma GCC visibility push(default)
+
+#include <bits/c++config.h>
+#include <bits/atomic_lockfree_defines.h>
+
extern "C++" {
-namespace std
+namespace std
{
- /** This is the base class for all exceptions thrown by the standard
+ /**
+ * @defgroup exceptions Exceptions
+ * @ingroup diagnostics
+ *
+ * Classes and functions for reporting errors via exception classes.
+ * @{
+ */
+
+ /**
+ * @brief Base class for all library exceptions.
+ *
+ * This is the base class for all exceptions thrown by the standard
* library, and by certain language expressions. You are free to derive
* your own %exception classes, or use a different hierarchy, or to
* throw non-class data (e.g., fundamental types).
- * @brief Base class for all library exceptions.
*/
- class exception
+ class exception
{
public:
- exception() throw() { }
- virtual ~exception() throw();
+ exception() _GLIBCXX_USE_NOEXCEPT { }
+ virtual ~exception() _GLIBCXX_USE_NOEXCEPT;
+
/** Returns a C-style character string describing the general cause
* of the current error. */
- virtual const char* what() const throw();
+ virtual const char* what() const _GLIBCXX_USE_NOEXCEPT;
};
/** If an %exception is thrown which is not listed in a function's
* %exception specification, one of these may be thrown. */
- class bad_exception : public exception
+ class bad_exception : public exception
{
public:
- bad_exception() throw() { }
- virtual ~bad_exception() throw();
+ bad_exception() _GLIBCXX_USE_NOEXCEPT { }
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_exception() _GLIBCXX_USE_NOEXCEPT;
+
+ // See comment in eh_exception.cc.
+ virtual const char* what() const _GLIBCXX_USE_NOEXCEPT;
};
/// If you write a replacement %terminate handler, it must be of this type.
typedef void (*terminate_handler) ();
+
/// If you write a replacement %unexpected handler, it must be of this type.
typedef void (*unexpected_handler) ();
/// Takes a new handler function as an argument, returns the old function.
- terminate_handler set_terminate(terminate_handler) throw();
+ terminate_handler set_terminate(terminate_handler) _GLIBCXX_USE_NOEXCEPT;
+
+#if __cplusplus >= 201103L
+ /// Return the current terminate handler.
+ terminate_handler get_terminate() noexcept;
+#endif
+
/** The runtime will call this function if %exception handling must be
- * abandoned for any reason. */
- void terminate() __attribute__ ((__noreturn__));
+ * abandoned for any reason. It can also be called by the user. */
+ void terminate() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__noreturn__));
/// Takes a new handler function as an argument, returns the old function.
- unexpected_handler set_unexpected(unexpected_handler) throw();
+ unexpected_handler set_unexpected(unexpected_handler) _GLIBCXX_USE_NOEXCEPT;
+
+#if __cplusplus >= 201103L
+ /// Return the current unexpected handler.
+ unexpected_handler get_unexpected() noexcept;
+#endif
+
/** The runtime will call this function if an %exception is thrown which
* violates the function's %exception specification. */
void unexpected() __attribute__ ((__noreturn__));
- /** [18.6.4]/1: "Returns true after completing evaluation of a
+ /** [18.6.4]/1: 'Returns true after completing evaluation of a
* throw-expression until either completing initialization of the
* exception-declaration in the matching handler or entering @c unexpected()
* due to the throw; or after entering @c terminate() for any reason
* other than an explicit call to @c terminate(). [Note: This includes
- * stack unwinding [15.2]. end note]"
+ * stack unwinding [15.2]. end note]'
*
- * 2: "When @c uncaught_exception() is true, throwing an %exception can
- * result in a call of @c terminate() (15.5.1)."
+ * 2: 'When @c uncaught_exception() is true, throwing an
+ * %exception can result in a call of @c terminate()
+ * (15.5.1).'
*/
- bool uncaught_exception() throw();
+ bool uncaught_exception() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
+
+ // @} group exceptions
} // namespace std
namespace __gnu_cxx
{
- /** A replacement for the standard terminate_handler which prints more
- information about the terminating exception (if any) on stderr.
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
- std::set_terminate (__gnu_cxx::__verbose_terminate_handler)
+ /**
+ * @brief A replacement for the standard terminate_handler which
+ * prints more information about the terminating exception (if any)
+ * on stderr.
+ *
+ * @ingroup exceptions
+ *
+ * Call
+ * @code
+ * std::set_terminate(__gnu_cxx::__verbose_terminate_handler)
+ * @endcode
+ * to use. For more info, see
+ * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt02ch06s02.html
+ *
+ * In 3.4 and later, this is on by default.
+ */
+ void __verbose_terminate_handler();
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
- to use. */
- void __verbose_terminate_handler ();
-} // namespace __gnu_cxx
-
} // extern "C++"
+#pragma GCC visibility pop
+
+#if (__cplusplus >= 201103L) && (ATOMIC_INT_LOCK_FREE > 1)
+#include <bits/exception_ptr.h>
+#include <bits/nested_exception.h>
+#endif
+
#endif