typeinfo   [plain text]

/*
 * Copyright (c) 2010 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#ifndef _TYPEINFO
#define _TYPEINFO

#include <exception>
#include <stddef.h>

namespace __cxxabiv1
{
    class __class_type_info;
}

namespace std 
{

class type_info 
{
    type_info& operator=(const type_info&);
    type_info(const type_info&);
protected:
    const char* __type_name;

    explicit type_info(const char* __n)
        : __type_name(__n) {}

public:
    virtual ~type_info();

    const char* name() const {return __type_name;}

    bool before(const type_info& __arg) const
        {return __type_name < __arg.__type_name;}
    size_t hash_code() const throw()
        {return *reinterpret_cast<const size_t*>(&__type_name);}

    bool operator==(const type_info& __arg) const
        {return __type_name == __arg.__type_name;}
    bool operator!=(const type_info& __arg) const
        {return !operator==(__arg);}

    virtual bool __is_pointer_p() const;
    virtual bool __is_function_p() const;
    virtual bool __do_catch(const type_info*, void**, unsigned) const;
    virtual bool __do_upcast(const __cxxabiv1::__class_type_info*, void**) const;
};

class bad_cast : public exception 
{
public:
    bad_cast() throw() {}
    virtual ~bad_cast() throw();
    virtual const char* what() const throw();
};

class bad_typeid : public exception 
{
public:
    bad_typeid () throw() { }
    virtual ~bad_typeid() throw();
    virtual const char* what() const throw();
};

}  // std

#endif // _TYPEINFO