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// Copyright (c) 2005-2022 Jay Berkenbilt
//
// This file is part of qpdf.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Versions of qpdf prior to version 7 were released under the terms
// of version 2.0 of the Artistic License. At your option, you may
// continue to consider qpdf to be licensed under those terms. Please
// see the manual for additional information.
#ifndef QPDFSYSTEMERROR_HH
#define QPDFSYSTEMERROR_HH
#include <qpdf/Constants.h>
#include <qpdf/DLL.h>
#include <qpdf/Types.h>
#include <stdexcept>
#include <string>
class QPDF_DLL_CLASS QPDFSystemError: public std::runtime_error
{
public:
QPDF_DLL
QPDFSystemError(std::string const& description, int system_errno);
QPDF_DLL
virtual ~QPDFSystemError() noexcept = default;
// To get a complete error string, call what(), provided by
// std::exception. The accessors below return the original values
// used to create the exception.
QPDF_DLL
std::string const& getDescription() const;
QPDF_DLL
int getErrno() const;
private:
QPDF_DLL_PRIVATE
static std::string
createWhat(std::string const& description, int system_errno);
// This class does not use the Members pattern to avoid needless
// memory allocations during exception handling.
std::string description;
int system_errno;
};
#endif // QPDFSYSTEMERROR_HH
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