/* Copyright (C) 2014 InfiniDB, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

/****************************************************************************
* $Id: func_crc32.cpp 3923 2013-06-19 21:43:06Z bwilkinson $
*
*
****************************************************************************/

#include <unistd.h>
#include <cstdlib>
#include <string>
#include <sstream>
using namespace std;

#include "functor_int.h"
#include "functioncolumn.h"
#include "rowgroup.h"
using namespace execplan;

#ifndef _MSC_VER
#include "zlib.h"
#endif

namespace funcexp
{

CalpontSystemCatalog::ColType Func_crc32::operationType( FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
{
	return resultType;
}


int64_t Func_crc32::getIntVal(rowgroup::Row& row,
						FunctionParm& parm,
						bool& isNull,
						CalpontSystemCatalog::ColType& ct)
{
	const string& val = parm[0]->data()->getStrVal(row, isNull);
	return (int64_t) crc32(0L, (unsigned char*)val.c_str(), strlen(val.c_str()));
}


} // namespace funcexp
// vim:ts=4 sw=4: