URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libstdc++-v3/] [libsupc++/] [exception_ptr.h] - Rev 779
Go to most recent revision | Compare with Previous | Blame | View Log
// Exception Handling support header (exception_ptr class) for -*- C++ -*- // Copyright (C) 2008, 2009, 2010, 2011 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 bits/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 <bits/exception_defines.h> #if ATOMIC_INT_LOCK_FREE < 2 # 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() _GLIBCXX_USE_NOEXCEPT; /// 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) _GLIBCXX_USE_NOEXCEPT; void _M_addref() _GLIBCXX_USE_NOEXCEPT; void _M_release() _GLIBCXX_USE_NOEXCEPT; void *_M_get() const _GLIBCXX_NOEXCEPT __attribute__ ((__pure__)); friend exception_ptr std::current_exception() _GLIBCXX_USE_NOEXCEPT; friend void std::rethrow_exception(exception_ptr); public: exception_ptr() _GLIBCXX_USE_NOEXCEPT; exception_ptr(const exception_ptr&) _GLIBCXX_USE_NOEXCEPT; #ifdef __GXX_EXPERIMENTAL_CXX0X__ exception_ptr(nullptr_t) noexcept : _M_exception_object(0) { } exception_ptr(exception_ptr&& __o) noexcept : _M_exception_object(__o._M_exception_object) { __o._M_exception_object = 0; } #endif #if !defined (__GXX_EXPERIMENTAL_CXX0X__) || defined (_GLIBCXX_EH_PTR_COMPAT) typedef void (exception_ptr::*__safe_bool)(); // For construction from nullptr or 0. exception_ptr(__safe_bool) _GLIBCXX_USE_NOEXCEPT; #endif exception_ptr& operator=(const exception_ptr&) _GLIBCXX_USE_NOEXCEPT; #ifdef __GXX_EXPERIMENTAL_CXX0X__ exception_ptr& operator=(exception_ptr&& __o) noexcept { exception_ptr(static_cast<exception_ptr&&>(__o)).swap(*this); return *this; } #endif ~exception_ptr() _GLIBCXX_USE_NOEXCEPT; void swap(exception_ptr&) _GLIBCXX_USE_NOEXCEPT; #ifdef _GLIBCXX_EH_PTR_COMPAT // Retained for compatibility with CXXABI_1.3. void _M_safe_bool_dummy() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__const__)); bool operator!() const _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__)); operator __safe_bool() const _GLIBCXX_USE_NOEXCEPT; #endif #ifdef __GXX_EXPERIMENTAL_CXX0X__ explicit operator bool() const { return _M_exception_object; } #endif friend bool operator==(const exception_ptr&, const exception_ptr&) _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__)); const class type_info* __cxa_exception_type() const _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__)); }; bool operator==(const exception_ptr&, const exception_ptr&) _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__)); bool operator!=(const exception_ptr&, const exception_ptr&) _GLIBCXX_USE_NOEXCEPT __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) _GLIBCXX_USE_NOEXCEPT { __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) _GLIBCXX_USE_NOEXCEPT { return std::copy_exception<_Ex>(__ex); } // @} group exceptions } // namespace std } // extern "C++" #pragma GCC visibility pop #endif
Go to most recent revision | Compare with Previous | Blame | View Log