// Methods for type_info for -*- C++ -*- Run Time Type Identification.// Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2002// 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 2, 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.// You should have received a copy of the GNU General Public License// along with GCC; see the file COPYING. If not, write to// the Free Software Foundation, 51 Franklin Street, Fifth Floor,// Boston, MA 02110-1301, 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.#include <cstddef>#include "tinfo.h"#include "new" // for placement new// We can't rely on having stdlib.h if we're freestanding.extern "C" void abort ();using std::type_info;#if !__GXX_MERGED_TYPEINFO_NAMESbooltype_info::before (const type_info &arg) const{return __builtin_strcmp (name (), arg.name ()) < 0;}#endif#include <cxxabi.h>namespace __cxxabiv1 {using namespace std;// This has special meaning to the compiler, and will cause it// to emit the type_info structures for the fundamental types which are// mandated to exist in the runtime.__fundamental_type_info::~__fundamental_type_info (){}__array_type_info::~__array_type_info (){}__function_type_info::~__function_type_info (){}__enum_type_info::~__enum_type_info (){}__pbase_type_info::~__pbase_type_info (){}__pointer_type_info::~__pointer_type_info (){}__pointer_to_member_type_info::~__pointer_to_member_type_info (){}bool __pointer_type_info::__is_pointer_p () const{return true;}bool __function_type_info::__is_function_p () const{return true;}bool __pbase_type_info::__do_catch (const type_info *thr_type,void **thr_obj,unsigned outer) const{if (*this == *thr_type)return true; // same typeif (typeid (*this) != typeid (*thr_type))return false; // not both same kind of pointersif (!(outer & 1))// We're not the same and our outer pointers are not all const qualified// Therefore there must at least be a qualification conversion involved// But for that to be valid, our outer pointers must be const qualified.return false;const __pbase_type_info *thrown_type =static_cast <const __pbase_type_info *> (thr_type);if (thrown_type->__flags & ~__flags)// We're less qualified.return false;if (!(__flags & __const_mask))outer &= ~1;return __pointer_catch (thrown_type, thr_obj, outer);}inline bool __pbase_type_info::__pointer_catch (const __pbase_type_info *thrown_type,void **thr_obj,unsigned outer) const{return __pointee->__do_catch (thrown_type->__pointee, thr_obj, outer + 2);}bool __pointer_type_info::__pointer_catch (const __pbase_type_info *thrown_type,void **thr_obj,unsigned outer) const{if (outer < 2 && *__pointee == typeid (void)){// conversion to voidreturn !thrown_type->__pointee->__is_function_p ();}return __pbase_type_info::__pointer_catch (thrown_type, thr_obj, outer);}bool __pointer_to_member_type_info::__pointer_catch (const __pbase_type_info *thr_type,void **thr_obj,unsigned outer) const{// This static cast is always valid, as our caller will have determined that// thr_type is really a __pointer_to_member_type_info.const __pointer_to_member_type_info *thrown_type =static_cast <const __pointer_to_member_type_info *> (thr_type);if (*__context != *thrown_type->__context)return false; // not pointers to member of same classreturn __pbase_type_info::__pointer_catch (thrown_type, thr_obj, outer);}} // namespace std