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author | Constantin Jucovschi <cj@ubuntu.localdomain> | 2009-04-24 07:20:22 -0400 |
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committer | Constantin Jucovschi <cj@ubuntu.localdomain> | 2009-04-24 07:20:22 -0400 |
commit | 8f27e65bddd7d4b8515ce620fb485fdd78fcdf89 (patch) | |
tree | bd328a4dd4f92d32202241b5e3a7f36177792c5f /relcatalogif/floattype.C | |
download | rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.gz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.xz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.zip |
Initial commitv8.0
Diffstat (limited to 'relcatalogif/floattype.C')
-rw-r--r-- | relcatalogif/floattype.C | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/relcatalogif/floattype.C b/relcatalogif/floattype.C new file mode 100644 index 0000000..f043dd9 --- /dev/null +++ b/relcatalogif/floattype.C @@ -0,0 +1,159 @@ +/* +* 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; +} |