/** @file
 * IPRT / No-CRT - Our own exception header.
 */

/*
 * Copyright (C) 2022 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
 * VirtualBox OSE distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 */

#ifndef IPRT_INCLUDED_nocrt_exception
#define IPRT_INCLUDED_nocrt_exception
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif

#include <iprt/types.h>

namespace std {

/** Exception base class. */
class exception
{
public:
    exception() RT_NOEXCEPT
#ifdef _MSC_VER
        : m_pszWhat(NULL)
#endif
    { }

    exception(const exception &a_rThat) RT_NOEXCEPT
#ifdef _MSC_VER
        : m_pszWhat(a_rThat.m_pszWhat)
#endif
    {
        RT_NOREF(a_rThat);
    }

#ifdef _MSC_VER
    exception(const char *a_pszWhat, int a_iIgnored = 0) RT_NOEXCEPT
        : m_pszWhat(a_pszWhat)
    { RT_NOREF(a_iIgnored); }
#endif

    virtual ~exception() RT_NOEXCEPT
    {}

    virtual const char *what() const RT_NOEXCEPT
    {
#ifdef _MSC_VER
        if (m_pszWhat)
            return m_pszWhat;
#endif
        return "unknown exception";
    }
#ifdef _MSC_VER
protected:
        const char *m_pszWhat;
#endif
};

}

#endif /* !IPRT_INCLUDED_nocrt_exception */