1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: Data stream classes
4 // Author: Guilhem Lavaux
8 // Copyright: (c) Guilhem Lavaux
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
13 #pragma implementation "datstrm.h"
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
27 #include "wx/datstrm.h"
29 wxDataStream
::wxDataStream(istream
& s
)
35 wxDataStream
::wxDataStream(ostream
& s
)
41 wxDataStream
::wxDataStream(iostream
& s
)
47 wxDataStream
::~wxDataStream()
51 unsigned long wxDataStream
::Read32()
58 m_istream
->read(buf
, 4);
60 return (unsigned long)buf
[0] |
61 ((unsigned long)buf
[1] << 8) |
62 ((unsigned long)buf
[2] << 16) |
63 ((unsigned long)buf
[3] << 24);
66 unsigned short wxDataStream
::Read16()
73 m_istream
->read(buf
, 2);
75 return (unsigned short)buf
[0] |
76 ((unsigned short)buf
[1] << 8);
79 unsigned char wxDataStream
::Read8()
86 m_istream
->read(&buf
, 1);
87 return (unsigned char)buf
;
90 double wxDataStream
::ReadDouble()
92 extern "C" double ConvertFromIeeeExtended(const unsigned char *bytes
);
100 m_istream
->read(buf
, 10);
101 return ConvertFromIeeeExtended((unsigned char *)buf
);
107 wxString wxDataStream
::ReadLine()
114 m_istream
->getline(i_strg
, 255);
118 void wxDataStream
::Write32(unsigned long i
)
126 buf
[1] = (i
>> 8) & 0xff;
127 buf
[2] = (i
>> 16) & 0xff;
128 buf
[3] = (i
>> 24) & 0xff;
129 m_ostream
->write(buf
, 4);
132 void wxDataStream
::Write16(unsigned short i
)
140 buf
[1] = (i
>> 8) & 0xff;
141 m_ostream
->write(buf
, 2);
144 void wxDataStream
::Write8(unsigned char i
)
149 m_ostream
->write(&i
, 1);
152 void wxDataStream
::WriteLine(const wxString
& line
)
154 wxString tmp_string
= line
+ '\n';
159 m_ostream
->write((const char *) tmp_string
, tmp_string
.Length());
162 void wxDataStream
::WriteDouble(double d
)
164 extern "C" void ConvertToIeeeExtended(double num
, unsigned char *bytes
)
170 ConvertToIeeeExtended(d
, (unsigned char *)buf
);
171 m_ostream
->write(buf
, 10);