The output char buffer is too small to contain the decoded characters

Asked Feb 15 '16 at 21:04

Active Feb 15 '16 at 21:04

Viewed 2,795 times

I'm trying to read data from a binary file using c# This data is entered using code but I'm getting this exception

The output char buffer is too small to contain the decoded characters, encoding 'Unicode (UTF-8)' fallback 'System.Text.DecoderReplacementFallback'.

And here is the code :

FileStream fs = new FileStream(path,FileMode.Open);
                FileStream fs2 = new FileStream(path2, FileMode.CreateNew);
                BinaryReader br = new BinaryReader(fs);

                BinaryWriter bw = new BinaryWriter(fs2);
                while (br.PeekChar() != -1) 
                {
                    bw.Write(br.ReadInt32());
                    bw.Write(br.ReadString());
                }
                bw.Close();
                br.Close();

                fs2.Close();
                fs.Close();

the exception is in the peekChar line

asked Feb 15 '16 at 21:04

jad_obeid

You're trying to read random data and interpret it as unicode characters. Why? Stop using `PeekChar`. – Luaan Feb 15 '16 at 21:07
are you trying to read it as UTF-8 encoded characters? if not use `br.readbytes(bytesize)` where bytesize is the size of the data you're reading (i.e. char's are 2 bytes, int32's are 32 bytes) – Byren Higgin Feb 15 '16 at 21:10
@Luaan what should i use instead ? – jad_obeid Feb 15 '16 at 21:15
1

i'm reading strings that i don't know the length – jad_obeid Feb 15 '16 at 21:15

The output char buffer is too small to contain the decoded characters

0 Answers0