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added null pointer check and assert
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1 % -----------------------------------------------------------------------------
2 % wxFFileInputStream
3 % -----------------------------------------------------------------------------
4 \section{\class{wxFFileInputStream}}\label{wxffileinputstream}
5
6 This class represents data read in from a file. There are actually
7 two such groups of classes: this one is based on \helpref{wxFFile}{wxffile}
8 whereas \helpref{wxFileInputStream}{wxfileinputstream} is based in
9 the \helpref{wxFile}{wxfile} class.
10
11 Note that \helpref{SeekI()}{wxinputstreamseeki}
12 can seek beyond the end of the stream (file) and will thus not return
13 {\it wxInvalidOffset} for that.
14
15 \wxheading{Derived from}
16
17 \helpref{wxInputStream}{wxinputstream}\\
18 \helpref{wxStreamBase}{wxstreambase}
19
20 \wxheading{Include files}
21
22 <wx/wfstream.h>
23
24 \wxheading{Library}
25
26 \helpref{wxBase}{librarieslist}
27
28 \wxheading{See also}
29
30 \helpref{wxBufferedInputStream}{wxbufferedinputstream}, \helpref{wxFFileOutputStream}{wxffileoutputstream}, \helpref{wxFileOutputStream}{wxfileoutputstream}
31
32 % ----------
33 % Members
34 % ----------
35 \latexignore{\rtfignore{\wxheading{Members}}}
36
37 \membersection{wxFFileInputStream::wxFFileInputStream}\label{wxffileinputstreamctor}
38
39 \func{}{wxFFileInputStream}{\param{const wxString\&}{ filename}, \param{const wxString\&}{ mode = "rb"}}
40
41 Opens the specified file using its {\it filename} name using the specified mode.
42
43 \func{}{wxFFileInputStream}{\param{wxFFile\&}{ file}}
44
45 Initializes a file stream in read-only mode using the file I/O object {\it file}.
46
47 \func{}{wxFFileInputStream}{\param{FILE *}{ fp}}
48
49 Initializes a file stream in read-only mode using the specified file pointer {\it fp}.
50
51 \membersection{wxFFileInputStream::\destruct{wxFFileInputStream}}\label{wxffileinputstreamdtor}
52
53 \func{}{\destruct{wxFFileInputStream}}{\void}
54
55 Destructor.
56
57 \membersection{wxFFileInputStream::IsOk}\label{wxffileinputstreamisok}
58
59 \constfunc{bool}{IsOk}{\void}
60
61 Returns true if the stream is initialized and ready.
62
63 % -----------------------------------------------------------------------------
64 % wxFFileOutputStream
65 % -----------------------------------------------------------------------------
66 \section{\class{wxFFileOutputStream}}\label{wxffileoutputstream}
67
68 This class represents data written to a file. There are actually
69 two such groups of classes: this one is based on \helpref{wxFFile}{wxffile}
70 whereas \helpref{wxFileInputStream}{wxffileinputstream} is based in
71 the \helpref{wxFile}{wxfile} class.
72
73 Note that \helpref{SeekO()}{wxoutputstreamseeko}
74 can seek beyond the end of the stream (file) and will thus not return
75 {\it wxInvalidOffset} for that.
76
77 \wxheading{Derived from}
78
79 \helpref{wxOutputStream}{wxoutputstream}\\
80 \helpref{wxStreamBase}{wxstreambase}
81
82 \wxheading{Include files}
83
84 <wx/wfstream.h>
85
86 \wxheading{Library}
87
88 \helpref{wxBase}{librarieslist}
89
90 \wxheading{See also}
91
92 \helpref{wxBufferedOutputStream}{wxbufferedoutputstream}, \helpref{wxFFileInputStream}{wxffileinputstream}, \helpref{wxFileInputStream}{wxfileinputstream}
93
94 % ----------
95 % Members
96 % ----------
97 \latexignore{\rtfignore{\wxheading{Members}}}
98
99 \membersection{wxFFileOutputStream::wxFFileOutputStream}\label{wxffileoutputstreamctor}
100
101 \func{}{wxFFileOutputStream}{\param{const wxString\&}{ filename}, \param{const wxString\&}{ mode="w+b"}}
102
103 Opens the file with the given {\it filename} name in the specified mode.
104
105 \func{}{wxFFileOutputStream}{\param{wxFFile\&}{ file}}
106
107 Initializes a file stream in write-only mode using the file I/O object {\it file}.
108
109 \func{}{wxFFileOutputStream}{\param{FILE *}{ fp}}
110
111 Initializes a file stream in write-only mode using the file descriptor {\it fp}.
112
113 \membersection{wxFFileOutputStream::\destruct{wxFFileOutputStream}}\label{wxffileoutputstreamdtor}
114
115 \func{}{\destruct{wxFFileOutputStream}}{\void}
116
117 Destructor.
118
119 \membersection{wxFFileOutputStream::IsOk}\label{wxffileoutputstreamisok}
120
121 \constfunc{bool}{IsOk}{\void}
122
123 Returns true if the stream is initialized and ready.
124
125 % -----------------------------------------------------------------------------
126 % wxFFileStream
127 % -----------------------------------------------------------------------------
128 \section{\class{wxFFileStream}}\label{wxffilestream}
129
130 \wxheading{Derived from}
131
132 \helpref{wxFFileOutputStream}{wxffileoutputstream}\\
133 \helpref{wxOutputStream}{wxoutputstream}\\
134 \helpref{wxStreamBase}{wxstreambase}
135
136 \wxheading{Include files}
137
138 <wx/wfstream.h>
139
140 \wxheading{Library}
141
142 \helpref{wxBase}{librarieslist}
143
144 \wxheading{See also}
145
146 \helpref{wxStreamBuffer}{wxstreambuffer}
147
148 \latexignore{\rtfignore{\wxheading{Members}}}
149
150 \membersection{wxFFileStream::wxFFileStream}\label{wxffilestreamctor}
151
152 \func{}{wxFFileStream}{\param{const wxString\&}{ iofileName}}
153
154 Initializes a new file stream in read-write mode using the specified
155 {\it iofilename} name.
156
157