Blame UInt16.cc

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// -*- mode: c++; c-basic-offset:4 -*-
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// This file is part of libdap, A C++ implementation of the OPeNDAP Data
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// Access Protocol.
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// Copyright (c) 2002,2003 OPeNDAP, Inc.
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// Author: James Gallagher <jgallagher@opendap.org>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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//
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// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
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// (c) COPYRIGHT URI/MIT 1999
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// Please read the full copyright statement in the file COPYRIGHT_URI.
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//
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// Authors:
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//      jhrg,jimg       James Gallagher <jgallagher@gso.uri.edu>
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// Implementation for Int32.
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//
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// jhrg 9/7/94
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#include "config.h"
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#include <sstream>
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#include "Byte.h"           // synonymous with UInt8 and Char
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#include "Int8.h"
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#include "Int16.h"
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#include "UInt16.h"
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#include "Int32.h"
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#include "UInt32.h"
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#include "Int64.h"
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#include "UInt64.h"
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#include "Float32.h"
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#include "Float64.h"
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#include "Str.h"
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#include "Url.h"
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#include "DDS.h"
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#include "Marshaller.h"
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#include "UnMarshaller.h"
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#include "DMR.h"
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#include "D4StreamMarshaller.h"
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#include "D4StreamUnMarshaller.h"
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#include "util.h"
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#include "parser.h"
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#include "Operators.h"
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#include "dods-limits.h"
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#include "debug.h"
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#include "InternalErr.h"
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using std::cerr;
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using std::endl;
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namespace libdap {
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/** The UInt16 constructor accepts the name of the variable to be created.
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    @param n A string containing the name of the variable to be created.
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*/
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UInt16::UInt16(const string &n) : BaseType(n, dods_uint16_c), d_buf(0)
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{}
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/** The UInt16 server-side constructor accepts the name of the variable to
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    be created and the dataset name from which this instance is created.
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    @param n A string containing the name of the variable to be created.
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    @param d A string containing the name of the dataset from which this
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    variable is created
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*/
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UInt16::UInt16(const string &n, const string &d) : BaseType(n, d, dods_uint16_c), d_buf(0)
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{}
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UInt16::UInt16(const UInt16 &copy_from) : BaseType(copy_from)
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{
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    d_buf = copy_from.d_buf;
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}
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BaseType *
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UInt16::ptr_duplicate()
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{
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    return new UInt16(*this);
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}
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UInt16 &
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UInt16::operator=(const UInt16 &rhs)
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{
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    if (this == &rhs)
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        return *this;
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    dynamic_cast<BaseType &>(*this) = rhs;
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    d_buf = rhs.d_buf;
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    return *this;
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}
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unsigned int
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UInt16::width(bool) const
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{
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    return sizeof(dods_uint16);
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}
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bool
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UInt16::serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval)
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{
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#if USE_LOCAL_TIMEOUT_SCHEME
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    dds.timeout_on();
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#endif
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    if (!read_p())
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        read();  // read() throws Error and InternalErr
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    if (ce_eval && !eval.eval_selection(dds, dataset()))
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        return true;
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#if USE_LOCAL_TIMEOUT_SCHEME
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    dds.timeout_off();
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#endif
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    m.put_uint16( d_buf ) ;
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    return true;
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}
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bool
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UInt16::deserialize(UnMarshaller &um, DDS *, bool)
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{
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    um.get_uint16( d_buf ) ;
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    return false;
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}
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void
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UInt16::compute_checksum(Crc32 &checksum)
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{
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	checksum.AddData(reinterpret_cast<uint8_t*>(&d_buf), sizeof(d_buf));
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}
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/**
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 * @brief Serialize an Int8
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 * @param m
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 * @param dmr Unused
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 * @param eval Unused
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 * @param filter Unused
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 * @exception Error is thrown if the value needs to be read and that operation fails.
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 */
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void
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UInt16::serialize(D4StreamMarshaller &m, DMR &, /*ConstraintEvaluator &,*/ bool)
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{
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    if (!read_p())
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        read();          // read() throws Error
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    m.put_uint16( d_buf ) ;
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}
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void
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UInt16::deserialize(D4StreamUnMarshaller &um, DMR &)
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{
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    um.get_uint16( d_buf ) ;
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}
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unsigned int
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UInt16::val2buf(void *val, bool)
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{
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    // Jose Garcia
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    // This method is public therefore and I believe it has being designed
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    // to be use by read which must be implemented on the surrogated library,
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    // thus if the pointer val is NULL, is an Internal Error.
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    if (!val)
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        throw InternalErr(__FILE__, __LINE__,
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                          "The incoming pointer does not contain any data.");
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    d_buf = *(dods_uint16 *)val;
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    return width();
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}
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unsigned int
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UInt16::buf2val(void **val)
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{
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    // Jose Garcia
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    // The same comment justifying throwing an Error in val2buf applies here.
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    if (!val)
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        throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
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    if (!*val)
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        *val = new dods_uint16;
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    *(dods_uint16 *)*val = d_buf;
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    return width();
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}
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dods_uint16
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UInt16::value() const
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{
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    return d_buf;
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}
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bool
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UInt16::set_value(dods_uint16 i)
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{
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    d_buf = i;
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    set_read_p(true);
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    return true;
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}
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void
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UInt16::print_val(FILE *out, string space, bool print_decl_p)
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{
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    ostringstream oss;
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    print_val(oss, space, print_decl_p);
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    fwrite(oss.str().data(), sizeof(char), oss.str().length(), out);
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}
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void
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UInt16::print_val(ostream &out, string space, bool print_decl_p)
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{
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    if (print_decl_p) {
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        print_decl(out, space, false);
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	out << " = " << (unsigned int)d_buf << ";\n" ;
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    }
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    else
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	out << (unsigned int)d_buf ;
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}
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bool
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UInt16::ops(BaseType *b, int op)
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{
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    // Extract the Byte arg's value.
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    if (!read_p() && !read()) {
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        // Jose Garcia
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        // Since the read method is virtual and implemented outside
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        // libdap++ if we cannot read the data that is the problem
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        // of the user or of whoever wrote the surrogate library
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        // implemeting read therefore it is an internal error.
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        throw InternalErr(__FILE__, __LINE__, "This value was not read!");
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    }
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    // Extract the second arg's value.
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    if (!b || !(b->read_p() || b->read())) {
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        // Jose Garcia
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        // Since the read method is virtual and implemented outside
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        // libdap++ if we cannot read the data that is the problem
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        // of the user or of whoever wrote the surrogate library
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        // implemeting read therefore it is an internal error.
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        throw InternalErr(__FILE__, __LINE__, "This value was not read!");
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    }
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    switch (b->type()) {
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        case dods_int8_c:
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            return USCmp<dods_uint16, dods_int8>(op, d_buf, static_cast<Int8*>(b)->value());
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        case dods_byte_c:
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            return Cmp<dods_uint16, dods_byte>(op, d_buf, static_cast<Byte*>(b)->value());
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        case dods_int16_c:
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            return USCmp<dods_uint16, dods_int16>(op, d_buf, static_cast<Int16*>(b)->value());
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        case dods_uint16_c:
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            return Cmp<dods_uint16, dods_uint16>(op, d_buf, static_cast<UInt16*>(b)->value());
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        case dods_int32_c:
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            return USCmp<dods_uint16, dods_int32>(op, d_buf, static_cast<Int32*>(b)->value());
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        case dods_uint32_c:
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            return Cmp<dods_uint16, dods_uint32>(op, d_buf, static_cast<UInt32*>(b)->value());
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        case dods_int64_c:
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            return USCmp<dods_uint16, dods_int64>(op, d_buf, static_cast<Int64*>(b)->value());
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        case dods_uint64_c:
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            return Cmp<dods_uint16, dods_uint64>(op, d_buf, static_cast<UInt64*>(b)->value());
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        case dods_float32_c:
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            return USCmp<dods_uint16, dods_float32>(op, d_buf, static_cast<Float32*>(b)->value());
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        case dods_float64_c:
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            return USCmp<dods_uint16, dods_float64>(op, d_buf, static_cast<Float64*>(b)->value());
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        default:
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            return false;
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    }
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}
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/** @brief dumps information about this object
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 *
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 * Displays the pointer value of this instance and information about this
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 * instance.
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 *
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 * @param strm C++ i/o stream to dump the information to
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 * @return void
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 */
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void
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UInt16::dump(ostream &strm) const
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{
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    strm << DapIndent::LMarg << "UInt16::dump - ("
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    << (void *)this << ")" << endl ;
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    DapIndent::Indent() ;
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    BaseType::dump(strm) ;
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    strm << DapIndent::LMarg << "value: " << d_buf << endl ;
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    DapIndent::UnIndent() ;
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}
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} // namespace libdap
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