Byte.h

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00001 
00002 // -*- mode: c++; c-basic-offset:4 -*-
00003 
00004 // This file is part of libdap, A C++ implementation of the OPeNDAP Data
00005 // Access Protocol.
00006 
00007 // Copyright (c) 2002,2003 OPeNDAP, Inc.
00008 // Author: James Gallagher <jgallagher@opendap.org>
00009 //
00010 // This library is free software; you can redistribute it and/or
00011 // modify it under the terms of the GNU Lesser General Public
00012 // License as published by the Free Software Foundation; either
00013 // version 2.1 of the License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00023 //
00024 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
00025 
00026 // (c) COPYRIGHT URI/MIT 1994-1999
00027 // Please read the full copyright statement in the file COPYRIGHT_URI.
00028 //
00029 // Authors:
00030 //      jhrg,jimg       James Gallagher <jgallagher@gso.uri.edu>
00031 
00032 // Interface for Byte type.
00033 //
00034 // jhrg 9/7/94
00035 
00036 #ifndef _byte_h
00037 #define _byte_h 1
00038 
00039 
00040 #ifndef _dods_datatypes_h
00041 #include "dods-datatypes.h"
00042 #endif
00043 
00044 #ifndef _basetype_h
00045 #include "BaseType.h"
00046 #endif
00047 
00048 #ifndef constraint_evaluator_h
00049 #include "ConstraintEvaluator.h"
00050 #endif
00051 
00058 class Byte: public BaseType
00059 {
00065     friend class Int16;
00066     friend class UInt16;
00067     friend class Int32;
00068     friend class UInt32;
00069     friend class Float32;
00070     friend class Float64;
00071 
00072 protected:
00073     dods_byte _buf;
00074 
00075 public:
00076     Byte(const string &n = "");
00077 
00078     virtual ~Byte()
00079     {}
00080 
00081     Byte(const Byte &copy_from);
00082 
00083     Byte &operator=(const Byte &rhs);
00084 
00085     virtual unsigned int width();
00086 
00087     virtual BaseType *ptr_duplicate();
00088 
00089     bool serialize(const string &dataset, ConstraintEvaluator &eval,
00090                    DDS &dds, XDR *sink, bool ce_eval);
00091     bool deserialize(XDR *source, DDS *, bool);
00092 
00093     virtual unsigned int val2buf(void *val, bool reuse = false);
00094     virtual unsigned int buf2val(void **val);
00095 
00096     virtual bool set_value(const dods_byte value);
00097     virtual dods_byte value() const;
00098 
00099     virtual void print_val(FILE *out, string space = "",
00100                            bool print_decl_p = true);
00101 
00102     virtual bool ops(BaseType *b, int op, const string &dataset);
00103 
00104     virtual void dump(ostream &strm) const ;
00105 };
00106 
00107 #endif // _byte_h
00108 

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