Blame Int64.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 1994-1999
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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 Int64.
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//
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// jhrg 9/7/94
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#include "config.h"
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#include <cassert>
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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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#if 0
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#include "Array.h"
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#include "Structure.h"
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#include "Sequence.h"
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#include "Grid.h"
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#endif
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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 Int64 constructor requires only the name of the variable
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    to be created.  The name may be omitted, which will create a
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    nameless variable.  This may be adequate for some applications.
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    @note This type is available in DAP4 only.
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    See http://docs.opendap.org/index.php/DAP4:_Specification_Volume_1#Atomic_Types
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    @param n A string containing the name of the variable to be
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    created.
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*/
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Int64::Int64(const string &n) : BaseType(n, dods_int64_c, true /*is_dap4*/), d_buf(0)
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{}
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/** The Int64 server-side constructor accepts the name of the variable and
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    the dataset name from which this instance is created.
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    @note This type is available in DAP4 only.
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    See http://docs.opendap.org/index.php/DAP4:_Specification_Volume_1#Atomic_Types
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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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Int64::Int64(const string &n, const string &d) : BaseType(n, d, dods_int64_c, true /*is_dap4*/), d_buf(0)
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{}
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Int64::Int64(const Int64 &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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Int64::ptr_duplicate()
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{
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    return new Int64(*this);
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}
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Int64::~Int64()
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{
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    DBG(cerr << "~Int64" << endl);
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}
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Int64 &
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Int64::operator=(const Int64 &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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Int64::width(bool) const
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{
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    return sizeof(dods_int64);
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}
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void
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Int64::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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Int64::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_int64( d_buf ) ;
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}
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void
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Int64::deserialize(D4StreamUnMarshaller &um, DMR &)
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{
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    um.get_int64( d_buf ) ;
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}
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dods_int64
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Int64::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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Int64::set_value(dods_int64 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 Int64::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 << " = " << d_buf << ";\n";
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    }
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    else
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        out << d_buf;
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}
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bool
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Int64::ops(BaseType *b, int op)
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{
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    // Get the arg's value.
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    if (!read_p() && !read())
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        throw InternalErr(__FILE__, __LINE__, "This value not read!");
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    // Get the second arg's value.
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    if (!b->read_p() && !b->read())
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        throw InternalErr(__FILE__, __LINE__, "This value not read!");
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    return d4_ops(b, op);
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    return false;
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}
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/**
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 * @see BaseType::d4_ops(BaseType *, int)
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 */
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bool Int64::d4_ops(BaseType *b, int op)
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{
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    switch (b->type()) {
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        case dods_int8_c:
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            return Cmp<dods_int64, dods_int8>(op, d_buf, static_cast<Int8*>(b)->value());
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        case dods_byte_c:
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            return SUCmp<dods_int64, dods_byte>(op, d_buf, static_cast<Byte*>(b)->value());
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        case dods_int16_c:
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            return Cmp<dods_int64, dods_int16>(op, d_buf, static_cast<Int16*>(b)->value());
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        case dods_uint16_c:
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            return SUCmp<dods_int64, dods_uint16>(op, d_buf, static_cast<UInt16*>(b)->value());
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        case dods_int32_c:
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            return Cmp<dods_int64, dods_int32>(op, d_buf, static_cast<Int32*>(b)->value());
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        case dods_uint32_c:
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            return SUCmp<dods_int64, dods_uint32>(op, d_buf, static_cast<UInt32*>(b)->value());
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        case dods_int64_c:
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            return Cmp<dods_int64, dods_int64>(op, d_buf, static_cast<Int64*>(b)->value());
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        case dods_uint64_c:
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            return SUCmp<dods_int64, dods_uint64>(op, d_buf, static_cast<UInt64*>(b)->value());
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        case dods_float32_c:
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            return Cmp<dods_int64, dods_float32>(op, d_buf, static_cast<Float32*>(b)->value());
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        case dods_float64_c:
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            return Cmp<dods_int64, dods_float64>(op, d_buf, static_cast<Float64*>(b)->value());
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        case dods_str_c:
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        case dods_url_c:
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            throw Error(malformed_expr, "Relational operators can only compare compatible types (number, string).");
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        default:
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            throw Error(malformed_expr, "Relational operators only work with scalar types.");
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    }
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}
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/** @brief DAP4 to DAP2 transform
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 *
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 * Return a DAP2 'copy' of the variable.
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 *
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 * @return A pointer to the transformed variable
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 */
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vector<BaseType *> *
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Int64::transform_to_dap2(AttrTable *)
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{
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#if 0
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    BaseType *dest = this->ptr_duplicate();
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    // convert the d4 attributes to a dap2 attribute table.
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    AttrTable *attrs = this->attributes()->get_AttrTable();
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    attrs->set_name(name());
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    dest->set_attr_table(*attrs);
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    dest->set_is_dap4(false);
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    // attrs->print(cerr,"",true);
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    return dest;
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#endif
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    return NULL;
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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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Int64::dump(ostream &strm) const
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{
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    strm << DapIndent::LMarg << "Int64::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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