gpgme/lang/cpp/src/result.h
Ingo Klöcker 321c8a0254 cpp: Allow changing the error of a result
* lang/cpp/src/result.h (class Result): Add member function setError.
--

This can be used to replace the error of a result with a more suitable
error.

GnuPG-bug-id: 5939
2022-04-22 17:30:59 +02:00

69 lines
1.7 KiB
C++

/*
result.h - base class for results
Copyright (C) 2004 Klarälvdalens Datakonsult AB
2016 Bundesamt für Sicherheit in der Informationstechnik
Software engineering by Intevation GmbH
This file is part of GPGME++.
GPGME++ is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
GPGME++ 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with GPGME++; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef __GPGMEPP_RESULT_H__
#define __GPGMEPP_RESULT_H__
#include "gpgmefw.h"
#include "error.h"
#include <algorithm> // std::swap
namespace GpgME
{
class GPGMEPP_EXPORT Result
{
protected:
explicit Result() : mError() {}
explicit Result(int err) : mError(err) {}
explicit Result(const Error &err) : mError(err) {}
void swap(Result &other)
{
std::swap(other.mError, mError);
}
public:
const Error &error() const
{
return mError;
}
/**
* Replaces the error set during construction with \p error.
* Use with care, e.g. to set a more suitable error.
*/
void setError(const Error &error)
{
mError = error;
}
protected:
Error mError;
};
}
#endif // __GPGMEPP_RESULT_H__