bes  Updated for version 3.20.6
FFFloat32.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 1999
27 // Please read the full copyright statement in the file COPYRIGHT.
28 //
29 // Authors: James Gallagher
30 
31 #include "config_ff.h"
32 
33 static char rcsid[] not_used ={"$Id$"};
34 
35 #include "FFFloat32.h"
36 #include "util_ff.h"
37 #include "util.h"
38 
39 #include <cstring>
40 
41 extern long BufPtr;
42 extern char *BufVal;
43 
44 FFFloat32::FFFloat32(const string &n, const string &d) : Float32(n, d)
45 {
46 }
47 
48 BaseType *
49 FFFloat32::ptr_duplicate()
50 {
51  return new FFFloat32(*this); // Copy ctor calls duplicate to do the work
52 }
53 
54 bool
55 FFFloat32::read()
56 {
57  if (read_p()) // nothing to do
58  return true;
59 
60  if(BufVal) { // data in cache
61  char *ptr = BufVal+BufPtr;
62 
63  dods_float32 align;
64  if (width() > sizeof(align))
65  throw InternalErr(__FILE__, __LINE__, "Float32 size.");
66  memcpy((void*)&align, (void *)ptr, width());
67 
68  val2buf((void *) &align);
69  set_read_p(true);
70 
71  BufPtr += width();
72 
73  return true;
74  }
75 
76  return false;
77 }
FFFloat32
Definition: FFFloat32.h:39