GEOS  3.6.1
ByteOrderDataInStream.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2005-2006 Refractions Research Inc.
7  * Copyright (C) 2001-2002 Vivid Solutions Inc.
8  *
9  * This is free software; you can redistribute and/or modify it under
10  * the terms of the GNU Lesser General Public Licence as published
11  * by the Free Software Foundation.
12  * See the COPYING file for more information.
13  *
14  **********************************************************************
15  *
16  * Last port: io/ByteOrderDataInStream.java rev. 1.1 (JTS-1.10)
17  *
18  **********************************************************************/
19 
20 #ifndef GEOS_IO_BYTEORDERDATAINSTREAM_H
21 #define GEOS_IO_BYTEORDERDATAINSTREAM_H
22 
23 #include <geos/export.h>
24 
25 //#include <geos/platform.h>
26 //#include <geos/io/ParseException.h>
27 //#include <geos/io/ByteOrderValues.h>
28 #include <geos/inline.h>
29 
30 #include <iosfwd> // ostream, istream (if we remove inlines)
31 
32 namespace geos {
33 namespace io {
34 
35 /*
36  * \class ByteOrderDataInStream io.h geos.h
37  *
38  * Allows reading an stream of primitive datatypes from an underlying
39  * istream, with the representation being in either common byte ordering.
40  *
41  */
42 class GEOS_DLL ByteOrderDataInStream {
43 
44 public:
45 
46  ByteOrderDataInStream(std::istream *s=NULL);
47 
48  ~ByteOrderDataInStream();
49 
54  void setInStream(std::istream *s);
55 
56  void setOrder(int order);
57 
58  unsigned char readByte(); // throws ParseException
59 
60  int readInt(); // throws ParseException
61 
62  long readLong(); // throws ParseException
63 
64  double readDouble(); // throws ParseException
65 
66 private:
67  int byteOrder;
68  std::istream *stream;
69 
70  // buffers to hold primitive datatypes
71  unsigned char buf[8];
72 
73 };
74 
75 } // namespace io
76 } // namespace geos
77 
78 #ifdef GEOS_INLINE
79 #include <geos/io/ByteOrderDataInStream.inl>
80 #endif
81 
82 #endif // #ifndef GEOS_IO_BYTEORDERDATAINSTREAM_H
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25