corrade-vassal – Blame information for rev 1
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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | vero | 1 | using System; |
| 2 | using System.Collections.Generic; |
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| 3 | using System.Text; |
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| 4 | using System.IO; |
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| 5 | |||
| 6 | namespace CSJ2K.Util |
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| 7 | { |
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| 8 | internal class EndianBinaryReader : BinaryReader |
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| 9 | { |
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| 10 | private bool _bigEndian = false; |
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| 11 | |||
| 12 | // Summary: |
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| 13 | // Initializes a new instance of the System.IO.BinaryReader class based on the |
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| 14 | // supplied stream and using System.Text.UTF8Encoding. |
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| 15 | // |
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| 16 | // Parameters: |
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| 17 | // input: |
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| 18 | // A stream. |
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| 19 | // |
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| 20 | // Exceptions: |
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| 21 | // System.ArgumentException: |
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| 22 | // The stream does not support reading, the stream is null, or the stream is |
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| 23 | // already closed. |
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| 24 | public EndianBinaryReader(Stream input) : base(input) |
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| 25 | { |
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| 26 | |||
| 27 | } |
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| 28 | // |
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| 29 | // Summary: |
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| 30 | // Initializes a new instance of the System.IO.BinaryReader class based on the |
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| 31 | // supplied stream and a specific character encoding. |
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| 32 | // |
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| 33 | // Parameters: |
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| 34 | // encoding: |
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| 35 | // The character encoding. |
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| 36 | // |
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| 37 | // input: |
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| 38 | // The supplied stream. |
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| 39 | // |
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| 40 | // Exceptions: |
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| 41 | // System.ArgumentNullException: |
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| 42 | // encoding is null. |
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| 43 | // |
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| 44 | // System.ArgumentException: |
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| 45 | // The stream does not support reading, the stream is null, or the stream is |
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| 46 | // already closed. |
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| 47 | public EndianBinaryReader(Stream input, Encoding encoding) : base(input, encoding) |
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| 48 | { |
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| 49 | |||
| 50 | } |
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| 51 | |||
| 52 | public EndianBinaryReader(Stream input, Encoding encoding, bool bigEndian) |
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| 53 | : base(input, encoding) |
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| 54 | { |
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| 55 | _bigEndian = bigEndian; |
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| 56 | } |
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| 57 | |||
| 58 | public EndianBinaryReader(Stream input, bool bigEndian) : base(input, bigEndian ? Encoding.BigEndianUnicode : Encoding.ASCII) |
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| 59 | { |
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| 60 | _bigEndian = bigEndian; |
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| 61 | } |
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| 62 | |||
| 63 | // Summary: |
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| 64 | // Exposes access to the underlying stream of the System.IO.BinaryReader. |
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| 65 | // |
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| 66 | // Returns: |
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| 67 | // The underlying stream associated with the BinaryReader. |
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| 68 | //public virtual Stream BaseStream { get; } |
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| 69 | |||
| 70 | // Summary: |
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| 71 | // Closes the current reader and the underlying stream. |
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| 72 | //public virtual void Close(); |
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| 73 | // |
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| 74 | // Summary: |
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| 75 | // Releases the unmanaged resources used by the System.IO.BinaryReader and optionally |
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| 76 | // releases the managed resources. |
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| 77 | // |
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| 78 | // Parameters: |
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| 79 | // disposing: |
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| 80 | // true to release both managed and unmanaged resources; false to release only |
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| 81 | // unmanaged resources. |
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| 82 | //protected virtual void Dispose(bool disposing); |
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| 83 | // |
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| 84 | // Summary: |
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| 85 | // Fills the internal buffer with the specified number of bytes read from the |
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| 86 | // stream. |
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| 87 | // |
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| 88 | // Parameters: |
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| 89 | // numBytes: |
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| 90 | // The number of bytes to be read. |
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| 91 | // |
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| 92 | // Exceptions: |
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| 93 | // System.IO.EndOfStreamException: |
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| 94 | // The end of the stream is reached before numBytes could be read. |
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| 95 | // |
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| 96 | // System.IO.IOException: |
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| 97 | // An I/O error occurs. |
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| 98 | //protected virtual void FillBuffer(int numBytes); |
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| 99 | // |
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| 100 | // Summary: |
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| 101 | // Returns the next available character and does not advance the byte or character |
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| 102 | // position. |
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| 103 | // |
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| 104 | // Returns: |
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| 105 | // The next available character, or -1 if no more characters are available or |
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| 106 | // the stream does not support seeking. |
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| 107 | // |
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| 108 | // Exceptions: |
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| 109 | // System.IO.IOException: |
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| 110 | // An I/O error occurs. |
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| 111 | //public virtual int PeekChar(); |
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| 112 | // |
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| 113 | // Summary: |
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| 114 | // Reads characters from the underlying stream and advances the current position |
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| 115 | // of the stream in accordance with the Encoding used and the specific character |
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| 116 | // being read from the stream. |
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| 117 | // |
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| 118 | // Returns: |
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| 119 | // The next character from the input stream, or -1 if no characters are currently |
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| 120 | // available. |
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| 121 | // |
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| 122 | // Exceptions: |
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| 123 | // System.ObjectDisposedException: |
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| 124 | // The stream is closed. |
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| 125 | // |
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| 126 | // System.IO.IOException: |
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| 127 | // An I/O error occurs. |
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| 128 | //public virtual int Read(); |
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| 129 | // |
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| 130 | // Summary: |
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| 131 | // Reads count bytes from the stream with index as the starting point in the |
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| 132 | // byte array. |
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| 133 | // |
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| 134 | // Parameters: |
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| 135 | // count: |
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| 136 | // The number of characters to read. |
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| 137 | // |
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| 138 | // buffer: |
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| 139 | // The buffer to read data into. |
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| 140 | // |
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| 141 | // index: |
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| 142 | // The starting point in the buffer at which to begin reading into the buffer. |
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| 143 | // |
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| 144 | // Returns: |
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| 145 | // The number of characters read into buffer. This might be less than the number |
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| 146 | // of bytes requested if that many bytes are not available, or it might be zero |
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| 147 | // if the end of the stream is reached. |
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| 148 | // |
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| 149 | // Exceptions: |
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| 150 | // System.ArgumentNullException: |
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| 151 | // buffer is null. |
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| 152 | // |
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| 153 | // System.IO.IOException: |
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| 154 | // An I/O error occurs. |
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| 155 | // |
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| 156 | // System.ObjectDisposedException: |
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| 157 | // The stream is closed. |
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| 158 | // |
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| 159 | // System.ArgumentOutOfRangeException: |
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| 160 | // index or count is negative. |
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| 161 | // |
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| 162 | // System.ArgumentException: |
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| 163 | // The buffer length minus index is less than count. |
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| 164 | //public virtual int Read(byte[] buffer, int index, int count); |
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| 165 | // |
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| 166 | // Summary: |
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| 167 | // Reads count characters from the stream with index as the starting point in |
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| 168 | // the character array. |
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| 169 | // |
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| 170 | // Parameters: |
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| 171 | // count: |
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| 172 | // The number of characters to read. |
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| 173 | // |
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| 174 | // buffer: |
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| 175 | // The buffer to read data into. |
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| 176 | // |
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| 177 | // index: |
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| 178 | // The starting point in the buffer at which to begin reading into the buffer. |
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| 179 | // |
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| 180 | // Returns: |
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| 181 | // The total number of characters read into the buffer. This might be less than |
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| 182 | // the number of characters requested if that many characters are not currently |
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| 183 | // available, or it might be zero if the end of the stream is reached. |
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| 184 | // |
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| 185 | // Exceptions: |
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| 186 | // System.ArgumentNullException: |
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| 187 | // buffer is null. |
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| 188 | // |
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| 189 | // System.IO.IOException: |
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| 190 | // An I/O error occurs. |
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| 191 | // |
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| 192 | // System.ObjectDisposedException: |
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| 193 | // The stream is closed. |
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| 194 | // |
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| 195 | // System.ArgumentOutOfRangeException: |
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| 196 | // index or count is negative. |
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| 197 | // |
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| 198 | // System.ArgumentException: |
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| 199 | // The buffer length minus index is less than count. |
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| 200 | //public virtual int Read(char[] buffer, int index, int count); |
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| 201 | // |
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| 202 | // Summary: |
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| 203 | // Reads in a 32-bit integer in compressed format. |
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| 204 | // |
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| 205 | // Returns: |
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| 206 | // A 32-bit integer in compressed format. |
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| 207 | // |
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| 208 | // Exceptions: |
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| 209 | // System.ObjectDisposedException: |
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| 210 | // The stream is closed. |
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| 211 | // |
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| 212 | // System.IO.IOException: |
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| 213 | // An I/O error occurs. |
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| 214 | // |
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| 215 | // System.FormatException: |
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| 216 | // The stream is corrupted. |
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| 217 | // |
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| 218 | // System.IO.EndOfStreamException: |
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| 219 | // The end of the stream is reached. |
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| 220 | //protected internal int Read7BitEncodedInt(); |
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| 221 | // |
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| 222 | // Summary: |
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| 223 | // Reads a Boolean value from the current stream and advances the current position |
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| 224 | // of the stream by one byte. |
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| 225 | // |
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| 226 | // Returns: |
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| 227 | // true if the byte is nonzero; otherwise, false. |
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| 228 | // |
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| 229 | // Exceptions: |
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| 230 | // System.ObjectDisposedException: |
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| 231 | // The stream is closed. |
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| 232 | // |
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| 233 | // System.IO.IOException: |
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| 234 | // An I/O error occurs. |
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| 235 | // |
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| 236 | // System.IO.EndOfStreamException: |
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| 237 | // The end of the stream is reached. |
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| 238 | //public virtual bool ReadBoolean(); |
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| 239 | // |
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| 240 | // Summary: |
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| 241 | // Reads the next byte from the current stream and advances the current position |
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| 242 | // of the stream by one byte. |
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| 243 | // |
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| 244 | // Returns: |
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| 245 | // The next byte read from the current stream. |
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| 246 | // |
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| 247 | // Exceptions: |
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| 248 | // System.ObjectDisposedException: |
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| 249 | // The stream is closed. |
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| 250 | // |
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| 251 | // System.IO.IOException: |
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| 252 | // An I/O error occurs. |
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| 253 | // |
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| 254 | // System.IO.EndOfStreamException: |
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| 255 | // The end of the stream is reached. |
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| 256 | //public virtual byte ReadByte(); |
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| 257 | // |
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| 258 | // Summary: |
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| 259 | // Reads count bytes from the current stream into a byte array and advances |
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| 260 | // the current position by count bytes. |
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| 261 | // |
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| 262 | // Parameters: |
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| 263 | // count: |
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| 264 | // The number of bytes to read. |
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| 265 | // |
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| 266 | // Returns: |
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| 267 | // A byte array containing data read from the underlying stream. This might |
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| 268 | // be less than the number of bytes requested if the end of the stream is reached. |
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| 269 | // |
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| 270 | // Exceptions: |
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| 271 | // System.ObjectDisposedException: |
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| 272 | // The stream is closed. |
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| 273 | // |
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| 274 | // System.IO.IOException: |
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| 275 | // An I/O error occurs. |
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| 276 | // |
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| 277 | // System.ArgumentOutOfRangeException: |
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| 278 | // count is negative. |
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| 279 | //public virtual byte[] ReadBytes(int count); |
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| 280 | // |
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| 281 | // Summary: |
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| 282 | // Reads the next character from the current stream and advances the current |
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| 283 | // position of the stream in accordance with the Encoding used and the specific |
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| 284 | // character being read from the stream. |
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| 285 | // |
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| 286 | // Returns: |
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| 287 | // A character read from the current stream. |
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| 288 | // |
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| 289 | // Exceptions: |
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| 290 | // System.ObjectDisposedException: |
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| 291 | // The stream is closed. |
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| 292 | // |
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| 293 | // System.IO.IOException: |
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| 294 | // An I/O error occurs. |
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| 295 | // |
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| 296 | // System.IO.EndOfStreamException: |
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| 297 | // The end of the stream is reached. |
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| 298 | // |
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| 299 | // System.ArgumentException: |
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| 300 | // A surrogate character was read. |
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| 301 | //public virtual char ReadChar(); |
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| 302 | // |
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| 303 | // Summary: |
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| 304 | // Reads count characters from the current stream, returns the data in a character |
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| 305 | // array, and advances the current position in accordance with the Encoding |
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| 306 | // used and the specific character being read from the stream. |
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| 307 | // |
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| 308 | // Parameters: |
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| 309 | // count: |
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| 310 | // The number of characters to read. |
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| 311 | // |
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| 312 | // Returns: |
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| 313 | // A character array containing data read from the underlying stream. This might |
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| 314 | // be less than the number of characters requested if the end of the stream |
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| 315 | // is reached. |
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| 316 | // |
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| 317 | // Exceptions: |
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| 318 | // System.ObjectDisposedException: |
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| 319 | // The stream is closed. |
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| 320 | // |
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| 321 | // System.IO.IOException: |
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| 322 | // An I/O error occurs. |
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| 323 | // |
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| 324 | // System.IO.EndOfStreamException: |
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| 325 | // The end of the stream is reached. |
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| 326 | // |
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| 327 | // System.ArgumentOutOfRangeException: |
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| 328 | // count is negative. |
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| 329 | //public virtual char[] ReadChars(int count); |
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| 330 | // |
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| 331 | // Summary: |
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| 332 | // Reads a decimal value from the current stream and advances the current position |
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| 333 | // of the stream by sixteen bytes. |
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| 334 | // |
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| 335 | // Returns: |
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| 336 | // A decimal value read from the current stream. |
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| 337 | // |
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| 338 | // Exceptions: |
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| 339 | // System.ObjectDisposedException: |
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| 340 | // The stream is closed. |
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| 341 | // |
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| 342 | // System.IO.IOException: |
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| 343 | // An I/O error occurs. |
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| 344 | // |
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| 345 | // System.IO.EndOfStreamException: |
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| 346 | // The end of the stream is reached. |
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| 347 | public override decimal ReadDecimal() |
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| 348 | { |
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| 349 | if (_bigEndian) |
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| 350 | { |
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| 351 | // TODO: Is the whole thing reversed or just the individual ints? |
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| 352 | // Maybe we should just call ReadInt32 4 times? |
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| 353 | byte[] buf = this.ReadBytes(16); |
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| 354 | Array.Reverse(buf); |
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| 355 | int[] decimalints = new int[4]; |
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| 356 | decimalints[0]=BitConverter.ToInt32(buf, 0); |
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| 357 | decimalints[1]=BitConverter.ToInt32(buf, 4); |
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| 358 | decimalints[2]=BitConverter.ToInt32(buf, 8); |
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| 359 | decimalints[3]=BitConverter.ToInt32(buf, 12); |
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| 360 | return new decimal(decimalints); |
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| 361 | } |
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| 362 | else return base.ReadDecimal(); |
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| 363 | } |
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| 364 | // |
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| 365 | // Summary: |
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| 366 | // Reads an 8-byte floating point value from the current stream and advances |
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| 367 | // the current position of the stream by eight bytes. |
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| 368 | // |
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| 369 | // Returns: |
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| 370 | // An 8-byte floating point value read from the current stream. |
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| 371 | // |
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| 372 | // Exceptions: |
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| 373 | // System.ObjectDisposedException: |
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| 374 | // The stream is closed. |
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| 375 | // |
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| 376 | // System.IO.IOException: |
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| 377 | // An I/O error occurs. |
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| 378 | // |
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| 379 | // System.IO.EndOfStreamException: |
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| 380 | // The end of the stream is reached. |
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| 381 | public override double ReadDouble() |
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| 382 | { |
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| 383 | if (_bigEndian) |
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| 384 | { |
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| 385 | byte[] buf = this.ReadBytes(8); |
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| 386 | Array.Reverse(buf); |
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| 387 | return BitConverter.ToDouble(buf, 0); |
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| 388 | } |
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| 389 | else |
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| 390 | return base.ReadDouble(); |
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| 391 | } |
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| 392 | // |
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| 393 | // Summary: |
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| 394 | // Reads a 2-byte signed integer from the current stream and advances the current |
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| 395 | // position of the stream by two bytes. |
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| 396 | // |
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| 397 | // Returns: |
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| 398 | // A 2-byte signed integer read from the current stream. |
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| 399 | // |
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| 400 | // Exceptions: |
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| 401 | // System.ObjectDisposedException: |
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| 402 | // The stream is closed. |
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| 403 | // |
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| 404 | // System.IO.IOException: |
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| 405 | // An I/O error occurs. |
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| 406 | // |
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| 407 | // System.IO.EndOfStreamException: |
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| 408 | // The end of the stream is reached. |
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| 409 | public override short ReadInt16() |
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| 410 | { |
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| 411 | if (_bigEndian) |
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| 412 | { |
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| 413 | byte[] buf = this.ReadBytes(2); |
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| 414 | Array.Reverse(buf); |
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| 415 | return BitConverter.ToInt16(buf, 0); |
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| 416 | } |
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| 417 | else |
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| 418 | return base.ReadInt16(); |
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| 419 | } |
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| 420 | // |
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| 421 | // Summary: |
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| 422 | // Reads a 4-byte signed integer from the current stream and advances the current |
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| 423 | // position of the stream by four bytes. |
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| 424 | // |
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| 425 | // Returns: |
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| 426 | // A 4-byte signed integer read from the current stream. |
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| 427 | // |
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| 428 | // Exceptions: |
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| 429 | // System.ObjectDisposedException: |
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| 430 | // The stream is closed. |
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| 431 | // |
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| 432 | // System.IO.IOException: |
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| 433 | // An I/O error occurs. |
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| 434 | // |
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| 435 | // System.IO.EndOfStreamException: |
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| 436 | // The end of the stream is reached. |
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| 437 | public override int ReadInt32() |
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| 438 | { |
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| 439 | if (_bigEndian) |
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| 440 | { |
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| 441 | byte[] buf = this.ReadBytes(4); |
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| 442 | Array.Reverse(buf); |
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| 443 | return BitConverter.ToInt32(buf, 0); |
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| 444 | } |
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| 445 | else |
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| 446 | return base.ReadInt32(); |
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| 447 | } |
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| 448 | // |
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| 449 | // Summary: |
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| 450 | // Reads an 8-byte signed integer from the current stream and advances the current |
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| 451 | // position of the stream by eight bytes. |
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| 452 | // |
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| 453 | // Returns: |
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| 454 | // An 8-byte signed integer read from the current stream. |
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| 455 | // |
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| 456 | // Exceptions: |
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| 457 | // System.ObjectDisposedException: |
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| 458 | // The stream is closed. |
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| 459 | // |
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| 460 | // System.IO.IOException: |
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| 461 | // An I/O error occurs. |
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| 462 | // |
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| 463 | // System.IO.EndOfStreamException: |
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| 464 | // The end of the stream is reached. |
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| 465 | public override long ReadInt64() |
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| 466 | { |
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| 467 | if (_bigEndian) |
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| 468 | { |
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| 469 | byte[] buf = this.ReadBytes(8); |
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| 470 | Array.Reverse(buf); |
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| 471 | return BitConverter.ToInt64(buf, 0); |
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| 472 | } |
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| 473 | else |
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| 474 | return base.ReadInt64(); |
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| 475 | } |
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| 476 | // |
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| 477 | // Summary: |
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| 478 | // Reads a signed byte from this stream and advances the current position of |
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| 479 | // the stream by one byte. |
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| 480 | // |
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| 481 | // Returns: |
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| 482 | // A signed byte read from the current stream. |
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| 483 | // |
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| 484 | // Exceptions: |
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| 485 | // System.ObjectDisposedException: |
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| 486 | // The stream is closed. |
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| 487 | // |
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| 488 | // System.IO.IOException: |
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| 489 | // An I/O error occurs. |
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| 490 | // |
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| 491 | // System.IO.EndOfStreamException: |
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| 492 | // The end of the stream is reached. |
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| 493 | //[CLSCompliant(false)] |
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| 494 | //public virtual byte Readbyte(); |
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| 495 | // |
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| 496 | // Summary: |
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| 497 | // Reads a 4-byte floating point value from the current stream and advances |
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| 498 | // the current position of the stream by four bytes. |
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| 499 | // |
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| 500 | // Returns: |
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| 501 | // A 4-byte floating point value read from the current stream. |
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| 502 | // |
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| 503 | // Exceptions: |
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| 504 | // System.ObjectDisposedException: |
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| 505 | // The stream is closed. |
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| 506 | // |
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| 507 | // System.IO.IOException: |
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| 508 | // An I/O error occurs. |
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| 509 | // |
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| 510 | // System.IO.EndOfStreamException: |
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| 511 | // The end of the stream is reached. |
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| 512 | public override float ReadSingle() |
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| 513 | { |
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| 514 | if (_bigEndian) |
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| 515 | { |
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| 516 | byte[] buf = this.ReadBytes(4); |
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| 517 | Array.Reverse(buf); |
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| 518 | return BitConverter.ToSingle(buf, 0); |
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| 519 | } |
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| 520 | else |
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| 521 | return base.ReadSingle(); |
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| 522 | } |
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| 523 | // |
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| 524 | // Summary: |
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| 525 | // Reads a string from the current stream. The string is prefixed with the length, |
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| 526 | // encoded as an integer seven bits at a time. |
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| 527 | // |
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| 528 | // Returns: |
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| 529 | // The string being read. |
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| 530 | // |
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| 531 | // Exceptions: |
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| 532 | // System.ObjectDisposedException: |
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| 533 | // The stream is closed. |
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| 534 | // |
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| 535 | // System.IO.IOException: |
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| 536 | // An I/O error occurs. |
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| 537 | // |
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| 538 | // System.IO.EndOfStreamException: |
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| 539 | // The end of the stream is reached. |
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| 540 | //public virtual string ReadString(); |
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| 541 | // |
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| 542 | // Summary: |
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| 543 | // Reads a 2-byte unsigned integer from the current stream using little-endian |
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| 544 | // encoding and advances the position of the stream by two bytes. |
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| 545 | // |
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| 546 | // Returns: |
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| 547 | // A 2-byte unsigned integer read from this stream. |
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| 548 | // |
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| 549 | // Exceptions: |
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| 550 | // System.ObjectDisposedException: |
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| 551 | // The stream is closed. |
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| 552 | // |
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| 553 | // System.IO.IOException: |
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| 554 | // An I/O error occurs. |
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| 555 | // |
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| 556 | // System.IO.EndOfStreamException: |
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| 557 | // The end of the stream is reached. |
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| 558 | public override ushort ReadUInt16() |
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| 559 | { |
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| 560 | if (_bigEndian) |
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| 561 | { |
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| 562 | byte[] buf = this.ReadBytes(2); |
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| 563 | Array.Reverse(buf); |
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| 564 | return BitConverter.ToUInt16(buf, 0); |
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| 565 | } |
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| 566 | else |
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| 567 | return base.ReadUInt16(); |
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| 568 | } |
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| 569 | // |
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| 570 | // Summary: |
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| 571 | // Reads a 4-byte unsigned integer from the current stream and advances the |
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| 572 | // position of the stream by four bytes. |
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| 573 | // |
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| 574 | // Returns: |
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| 575 | // A 4-byte unsigned integer read from this stream. |
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| 576 | // |
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| 577 | // Exceptions: |
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| 578 | // System.ObjectDisposedException: |
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| 579 | // The stream is closed. |
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| 580 | // |
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| 581 | // System.IO.IOException: |
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| 582 | // An I/O error occurs. |
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| 583 | // |
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| 584 | // System.IO.EndOfStreamException: |
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| 585 | // The end of the stream is reached. |
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| 586 | public override uint ReadUInt32() |
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| 587 | { |
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| 588 | if (_bigEndian) |
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| 589 | { |
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| 590 | byte[] buf = this.ReadBytes(4); |
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| 591 | Array.Reverse(buf); |
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| 592 | return BitConverter.ToUInt32(buf, 0); |
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| 593 | } |
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| 594 | else |
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| 595 | return base.ReadUInt32(); |
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| 596 | } |
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| 597 | // |
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| 598 | // Summary: |
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| 599 | // Reads an 8-byte unsigned integer from the current stream and advances the |
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| 600 | // position of the stream by eight bytes. |
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| 601 | // |
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| 602 | // Returns: |
||
| 603 | // An 8-byte unsigned integer read from this stream. |
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| 604 | // |
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| 605 | // Exceptions: |
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| 606 | // System.ObjectDisposedException: |
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| 607 | // The stream is closed. |
||
| 608 | // |
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| 609 | // System.IO.IOException: |
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| 610 | // An I/O error occurs. |
||
| 611 | // |
||
| 612 | // System.IO.EndOfStreamException: |
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| 613 | // The end of the stream is reached. |
||
| 614 | public override ulong ReadUInt64() |
||
| 615 | { |
||
| 616 | if (_bigEndian) |
||
| 617 | { |
||
| 618 | byte[] buf = this.ReadBytes(8); |
||
| 619 | Array.Reverse(buf); |
||
| 620 | return BitConverter.ToUInt64(buf, 0); |
||
| 621 | } |
||
| 622 | else |
||
| 623 | return base.ReadUInt64(); |
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| 624 | } |
||
| 625 | } |
||
| 626 | } |