i am trying to read from file using RFilReadStream and getting error

[lokesh_kumar_s]

i am trying to read from file using RFilReadStream and getting system error -25
i have attached the file that i want to read.
and the code that i used to read it till end string by string is this

RFs aFs;
    aFs.Connect();
    RFileReadStream StartCameraStream;
    TInt fSize;
    User::LeaveIfError(StartCameraStream.Open(aFs,_L("C:\\Data\\StartCamera.txt"), EFileRead ));
    StartCameraStream.PushL();
    TStreamPos eofPos(StartCameraStream.Source()->SizeL());
    // Get the current position of file pointer.
    TStreamPos currentPos(0);
    
    // Read all TInt2’s until EOF.
    while (currentPos < eofPos)
    {
    TBuf<2000> value;
    StartCameraStream >> value;
    ShowMessage(value);
    
    /*aArray.Append(value);*/
    currentPos = StartCameraStream.Source()->TellL(MStreamBuf::ERead);
    }
    StartCameraStream.Close();
    StartCameraStream.Pop();

i am able to read first two strings and i am getting error in third iteration

please help

[wizard_hu_]

http://wiki.forum.nokia.com/index.php/Error_codes ?
You are reading a 2000 character Unicode descriptor (so practically 4000 bytes) from a 181-byte file. I do not think that error code should be that surprising.
You could try using RReadStream::ReadL(TDes8 &aDes, TChar aDelim), where aDelim could be the new line or the carriage return character.

[shafali gupta]

-25 implies KErrEof.

Did you check what position you are getting after every read?
currentPos = StartCameraStream.Source()->TellL(MStreamBuf::ERead);

[lokesh_kumar_s]

i know the error code meaning . see this is not the first time i faced this problem. i have already faced this problem i am not able to read the file using RFileReadStream using the above code. the code that i used is from one of the good Symbian book. please specify wat is the problem.

[wizard_hu_]

FYI: I have edited the post, make sure that you have read the second part of it.

[lokesh_kumar_s]

why RReadStream::ReadL(TDes8 &aDes, TChar aDelim)
why not RReadStream::ReadL(TDes16 &aDes, TChar aDelim)

[wizard_hu_]

Because your file contains 8-bit (ASCII) data, I have checked. Its length (181 bytes) also suggest that.
If you would use 16-bit, Unicode text files, TFileText would be a more comfortable tool than RReadStream.

[lokesh_kumar_s]

while (currentPos < eofPos)
    {
    TBuf8<200> value8;
    TBuf<200> value;
    TBuf<20> currPosBuf;
    StartCameraStream.ReadL(value8,'\n');
    value.Copy(value8);
    value.Trim();
    
    ShowMessage(value);
    
    /*aArray.Append(value);*/
    currentPos = StartCameraStream.Source()->TellL(MStreamBuf::ERead);
    currPosBuf.Num(currentPos.Offset());
    ShowMessage(_L("currPos="));
    ShowMessage(currPosBuf);
    }

i used the above code
but it is showing
i am writing it in same order
1st iteration:"0000-00-00"
2nd iteration:"00:00:00"
3rd iteration:"FILENAME"
4th iteration:"AF0000000"
5th iteration:"P0:N
AF00"
6th iteration:"0000000P1:N"
7th iteration:"P2:N
AF00"
8th iteration:"00000P3:N"
9th iteration:"P4:N
AF00"
10th iteration:"00000P5:N"
11th iteration:"P6:N
AF00"
12th iteration:"00000P7:N"
13th iteration:"P8:N
AF00"
14th iteration:"00000P9:N"

and the currentPos is increamenting in terms of 10
from 10 to 180 like
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180

[lokesh_kumar_s]

i think ascii value of \n is 10 so it is simply incrementing by ten
please specify how to get those strings by delimiting '\n'

[lokesh_kumar_s]

Thanks wizard_hu_ & shafali gupta i got it right i changed

StartCameraStream.ReadL(value8,'\n');

to

StartCameraStream.ReadL(value8,TChar('\n'));