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OrbWorks Community Forum • View topic - fileread()
Page 1 of 1

PostPosted: Sun Apr 29, 2001 8:20 am
by kjm
fileread(int filehandle,int counter) : Reads (unbuffered) data from a file at the current file position,

[ int filehandle] : filehandle, It is used to indentify which file this function is targeted,
[ int counter] : The maximum number of bytes to be read from the file, For text mode files, carriage return?¢‚Ǩ‚Äúlinefeed pairs are counted as single characters,

Does anyone know what this last sentence means? Does it mean that CR & LF are counted as one character or as two individual characters?

By the way how might a CR LF pair be tested for?

Is it the same for serial input?

Which brings me on to my next question.

Kevin

PostPosted: Mon Apr 30, 2001 9:13 am
by Justinespinosa
The CR LF are counted as one character . I don't know anything about serial. But it should be the same.

J.Espinosa

OUTS Softwares

PostPosted: Mon Apr 30, 2001 11:24 am
by guy
Are you sure about this?


Guy

PostPosted: Mon Apr 30, 2001 1:30 pm
by kjm
O.K. One character but what is that character?

Kevin

PostPosted: Tue May 01, 2001 6:38 am
by Justinespinosa
In fact, it's not so easy. to read a file, i always use the file len to read every bytes. because the CR LF pairs are stored as two bytes in the files. These pairs are displayed as one carachter on the screen or in a control, it's a kind of rect like every undisplayeable chars exepct in multiline text boxes.
They are counted as one character too by strlen() .
They are not a special carachter, i think. But if you want to find it with strchr() or strrchr() use "\n" or (char)13. These will work.


J.Espinosa

OUTS Softwares

PostPosted: Tue May 01, 2001 9:58 am
by guy
OK, that makes sense now. I've always treated them as two chars and it's worked fine for me.


Guy