bzr branch
http://bzr.ed.am/elec/propeller-clock
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by edam
added ulibc |
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// Exception Handling support header for -*- C++ -*- |
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// Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001, 2002 |
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// Free Software Foundation |
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// |
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// This file is part of GNU CC. |
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// |
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// GNU CC is free software; you can redistribute it and/or modify |
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// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation; either version 2, or (at your option) |
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// any later version. |
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// |
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// GNU CC is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with GNU CC; see the file COPYING. If not, write to |
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// the Free Software Foundation, 59 Temple Place - Suite 330, |
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// Boston, MA 02111-1307, USA. |
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// As a special exception, you may use this file as part of a free software |
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// library without restriction. Specifically, if other files instantiate |
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// templates or use macros or inline functions from this file, or you compile |
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// this file and link it with other files to produce an executable, this |
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// file does not by itself cause the resulting executable to be covered by |
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// the GNU General Public License. This exception does not however |
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// invalidate any other reasons why the executable file might be covered by |
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// the GNU General Public License. |
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/** @file exception |
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* This header defines several types and functions relating to the |
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* handling of exceptions in a C++ program. |
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*/ |
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#ifndef __EXCEPTION__ |
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#define __EXCEPTION__ |
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#include <basic_definitions> |
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extern "C++" { |
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namespace std |
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{ |
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/** |
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* @brief Base class for all library exceptions. |
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* |
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* This is the base class for all exceptions thrown by the standard |
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* library, and by certain language expressions. You are free to derive |
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* your own %exception classes, or use a different hierarchy, or to |
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* throw non-class data (e.g., fundamental types). |
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*/ |
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class exception |
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{ |
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public: |
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exception() throw() { } |
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virtual ~exception() throw(); |
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/** Returns a C-style character string describing the general cause |
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* of the current error. */ |
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virtual const char* what() const throw(); |
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}; |
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/** If an %exception is thrown which is not listed in a function's |
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* %exception specification, one of these may be thrown. */ |
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class bad_exception : public exception |
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{ |
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public: |
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bad_exception() throw() { } |
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// This declaration is not useless: |
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// http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118 |
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virtual ~bad_exception() throw(); |
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}; |
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/// If you write a replacement %terminate handler, it must be of this type. |
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typedef void (*terminate_handler) (); |
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/// If you write a replacement %unexpected handler, it must be of this type. |
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typedef void (*unexpected_handler) (); |
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/// Takes a new handler function as an argument, returns the old function. |
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terminate_handler set_terminate(terminate_handler) throw(); |
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/** The runtime will call this function if %exception handling must be |
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* abandoned for any reason. */ |
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void terminate() __UCLIBCXX_NORETURN; |
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/// Takes a new handler function as an argument, returns the old function. |
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unexpected_handler set_unexpected(unexpected_handler) throw(); |
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/** The runtime will call this function if an %exception is thrown which |
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* violates the function's %exception specification. */ |
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void unexpected() __UCLIBCXX_NORETURN; |
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/** [18.6.4]/1: "Returns true after completing evaluation of a |
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* throw-expression until either completing initialization of the |
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* exception-declaration in the matching handler or entering @c unexpected() |
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* due to the throw; or after entering @c terminate() for any reason |
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* other than an explicit call to @c terminate(). [Note: This includes |
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* stack unwinding [15.2]. end note]" |
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* |
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* 2: "When @c uncaught_exception() is true, throwing an %exception can |
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* result in a call of @c terminate() (15.5.1)." |
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*/ |
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bool uncaught_exception() throw(); |
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} // namespace std |
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namespace __gnu_cxx |
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{ |
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/** A replacement for the standard terminate_handler which prints more |
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information about the terminating exception (if any) on stderr. Call |
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@code |
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std::set_terminate (__gnu_cxx::__verbose_terminate_handler) |
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@endcode |
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to use. For more info, see |
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http://gcc.gnu.org/onlinedocs/libstdc++/19_diagnostics/howto.html#4 |
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*/ |
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void __verbose_terminate_handler (); |
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} // namespace __gnu_cxx |
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} // extern "C++" |
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#endif |