ebml/src/EbmlBinary.cpp
Moritz Bunkus 88cdc30938 Fix several gcc warnings occurring with -Wextra
Warnings fixed are:

- warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
- warning: unused parameter ... [-Wunused-parameter]
- warning: comparison is always true due to limited range of data type [-Wtype-limits]



git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@822 a6f86f6d-0131-4f8e-9e7b-e335508773d5
2011-11-25 21:01:45 +00:00

108 lines
2.8 KiB
C++

/****************************************************************************
** libebml : parse EBML files, see http://embl.sourceforge.net/
**
** <file/class description>
**
** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
**
** This file is part of libebml.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library 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
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**
** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
**
** Contact license@matroska.org if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
/*!
\file
\version \$Id$
\author Steve Lhomme <robux4 @ users.sf.net>
\author Julien Coloos <suiryc @ users.sf.net>
*/
#include <cassert>
#include <string>
#include "ebml/EbmlBinary.h"
#include "ebml/StdIOCallback.h"
START_LIBEBML_NAMESPACE
EbmlBinary::EbmlBinary()
:EbmlElement(0, false), Data(NULL)
{}
EbmlBinary::EbmlBinary(const EbmlBinary & ElementToClone)
:EbmlElement(ElementToClone)
{
if (ElementToClone.Data == NULL)
Data = NULL;
else {
Data = (binary *)malloc(GetSize() * sizeof(binary));
assert(Data != NULL);
memcpy(Data, ElementToClone.Data, GetSize());
}
}
EbmlBinary::~EbmlBinary(void) {
if(Data)
free(Data);
}
EbmlBinary::operator const binary &() const {return *Data;}
filepos_t EbmlBinary::RenderData(IOCallback & output, bool /* bForceRender */, bool /* bWithDefault */)
{
output.writeFully(Data,GetSize());
return GetSize();
}
/*!
\note no Default binary value handled
*/
uint64 EbmlBinary::UpdateSize(bool /* bWithDefault */, bool /* bForceRender */)
{
return GetSize();
}
filepos_t EbmlBinary::ReadData(IOCallback & input, ScopeMode ReadFully)
{
if (Data != NULL)
free(Data);
if (ReadFully == SCOPE_NO_DATA || !GetSize())
{
Data = NULL;
return GetSize();
}
Data = (binary *)malloc(GetSize());
if (Data == NULL)
throw CRTError(std::string("Error allocating data"));
SetValueIsSet();
return input.read(Data, GetSize());
}
bool EbmlBinary::operator==(const EbmlBinary & ElementToCompare) const
{
return ((GetSize() == ElementToCompare.GetSize()) && !memcmp(Data, ElementToCompare.Data, GetSize()));
}
END_LIBEBML_NAMESPACE