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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
/*************************************************************
*
*
* PURPOSE:
* uses ODMG-conformant O2 classes
*
*
* COMMENTS:
* none
*
************************************************************/
static const char rcsid[] = "@(#)catalogif,FloatType: $Header: /home/rasdev/CVS-repository/rasdaman/relcatalogif/floattype.C,v 1.10 2003/12/27 23:23:04 rasdev Exp $";
#include "floattype.hh"
#include <iomanip>
#include <string.h>
#include "reladminif/oidif.hh"
#include <values.h>
FloatType::FloatType(const OId& id) throw (r_Error)
: RealType(id)
{
readFromDb();
}
/*************************************************************
* Method name...: FloatType();
*
* Arguments.....: none
* Return value..: none
* Description...: initializes member variables for an
* FloatType.
************************************************************/
FloatType::FloatType()
: RealType(FloatType::Name, 4)
{
myType = FLOAT;
myOId = OId(FLOAT, OId::ATOMICTYPEOID);
}
/*************************************************************
* Method name...: FloatType(const FloatType& old);
*
* Arguments.....: none
* Return value..: none
* Description...: copy constructor
************************************************************/
FloatType::FloatType(const FloatType& old)
: RealType(old)
{
}
/*************************************************************
* Method name...: operator=(const FloatType&);
*
* Arguments.....: none
* Return value..: none
* Description...: copy constructor
************************************************************/
FloatType& FloatType::operator=(const FloatType& old)
{
// Gracefully handle self assignment
if (this == &old)
return *this;
AtomicType::operator=(old);
return *this;
}
/*************************************************************
* Method name...: ~FloatType();
*
* Arguments.....: none
* Return value..: none
* Description...: virtual destructor
************************************************************/
FloatType::~FloatType()
{
}
void
FloatType::readFromDb() throw (r_Error)
{
setName(FloatType::Name);
size = 4;
myType = FLOAT;
myOId = OId(FLOAT, OId::ATOMICTYPEOID);
}
/*************************************************************
* Method name...: void printCell( ostream& stream,
* const char* cell )
*
* Arguments.....:
* stream: stream to print on
* cell: pointer to cell to print
* Return value..: none
* Description...: prints a cell cell in hex on stream
* followed by a space.
* Assumes that Float is stored MSB..LSB
* on HP.
************************************************************/
void
FloatType::printCell( ostream& stream, const char* cell ) const
{
// !!!! HP specific, assumes 4 Byte float and MSB..LSB
// byte order
stream << std::setw(8) << *(float*)cell;
}
double*
FloatType::convertToCDouble(const char* cell, double* value) const
{
// !!!! HP specific, assumes 4 Byte float and MSB..LSB
// byte order
*value = *(float*)cell;
return value;
}
char*
FloatType::makeFromCDouble(char* cell, const double* value) const
{
// make sure that a float is not assigned a double (DEC Alpha correctly dumps core)
double dummy = *value;
if(dummy > FLT_MAX)
dummy = FLT_MAX;
if(dummy < -1.0f * FLT_MAX)
dummy = -1.0f * FLT_MAX;
*(float*)(cell) = dummy;
return cell;
}
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