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Description
Detect that an incomplete line was received when working with TCP_lineInput function.
Syntax
n = TCP_Eof(nFile)
Returns
Number.
Parameters
Name |
Type |
Optional |
Meaning |
nFile |
Number |
No |
Previously opened file number |
Remarks
This function may be used with TCP_LineInput function to detect that an incomplete line was received. Normally, these statements read data until a $CRLF character pair is found, and in that case, TCP_Eof will return 0 (FALSE). However, even if no $CRLF has been found, the statements will end when no additional data is available. In that case, they will return whatever data has already been accumulated, and set EOF to -1 (TRUE).
In many cases, it would be prudent to test TCP_Eof after every TCP_LineInput to verify that a full line has been received. In some cases, you may wish to execute the statement one or more additional times, combining the data, in order to obtain a full line of text.
Restrictions
See also
Examples
