/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** General Public License version 3 as published by the Free Software
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** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
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****************************************************************************/

#ifndef QSYSTEMERROR_P_H
#define QSYSTEMERROR_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtCore/private/qglobal_p.h>
#include <qstring.h>

QT_BEGIN_NAMESPACE

class QSystemError
{
public:
    enum ErrorScope
    {
        NoError,
        StandardLibraryError,
        NativeError
    };

    Q_DECL_CONSTEXPR explicit QSystemError(int error, ErrorScope scope)
        : errorCode(error), errorScope(scope)
    {
    }
    Q_DECL_CONSTEXPR QSystemError() = default;

    QString toString() const { return string(errorScope, errorCode); }
    Q_DECL_CONSTEXPR ErrorScope scope() const { return errorScope; }
    Q_DECL_CONSTEXPR int error() const { return errorCode; }

    static Q_CORE_EXPORT QString string(ErrorScope errorScope, int errorCode);
    static Q_CORE_EXPORT QString stdString(int errorCode = -1);
#ifdef Q_OS_WIN
    static Q_CORE_EXPORT QString windowsString(int errorCode = -1);
#endif

    //data members
    int errorCode = 0;
    ErrorScope errorScope = NoError;
};

QT_END_NAMESPACE

#endif // QSYSTEMERROR_P_H
