bes  Updated for version 3.20.6
FFFloat64.cc
1 
2 // -*- mode: c++; c-basic-offset:4 -*-
3 
4 // This file is part of ff_handler a FreeForm API handler for the OPeNDAP
5 // DAP2 data server.
6 
7 // Copyright (c) 2005 OPeNDAP, Inc.
8 // Author: James Gallagher <jgallagher@opendap.org>
9 //
10 // This is free software; you can redistribute it and/or modify it under the
11 // terms of the GNU Lesser General Public License as published by the Free
12 // Software Foundation; either version 2.1 of the License, or (at your
13 // option) any later version.
14 //
15 // This software is distributed in the hope that it will be useful, but
16 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
18 // License for more details.
19 //
20 // You should have received a copy of the GNU Lesser General Public
21 // License along with this library; if not, write to the Free Software
22 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 //
24 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
25 
26 // (c) COPYRIGHT URI/MIT 1997-99
27 // Please read the full copyright statement in the file COPYRIGHT.
28 //
29 // Authors: reza (Reza Nekovei)
30 
31 // FreeForm sub-class implementation for FFByte,...FFGrid.
32 // The files are patterned after the subcalssing examples
33 // Test<type>.c,h files.
34 //
35 // ReZa 6/18/97
36 
37 #include "config_ff.h"
38 
39 static char rcsid[] not_used = {"$Id$"};
40 
41 #include <string>
42 #include <cstring>
43 
44 #include "FFFloat64.h"
45 #include "util_ff.h"
46 #include "util.h"
47 
48 extern long BufPtr;
49 extern char *BufVal;
50 
51 FFFloat64::FFFloat64(const string &n, const string &d) : Float64(n, d)
52 {
53 }
54 
55 BaseType *
56 FFFloat64::ptr_duplicate()
57 {
58  return new FFFloat64(*this); // Copy ctor calls duplicate to do the work
59 }
60 
61 bool
62 FFFloat64::read()
63 {
64  if (read_p()) // nothing to do
65  return true;
66 
67  if(BufVal){ // data in cache
68  char * ptr = BufVal+BufPtr;
69 
70  dods_float64 align;
71  if (width() > sizeof(align))
72  throw InternalErr(__FILE__, __LINE__, "Float64 size.");
73  memcpy((void*)&align, (void *)ptr, width());
74 
75  val2buf((void *) &align);
76  set_read_p(true);
77 
78  BufPtr += width();
79 
80  return true;
81  }
82 
83  return false;
84 }
85 
FFFloat64
Definition: FFFloat64.h:45