Re: Improved tail patch

[Andreas Schwab]

address@hidden writes:

> You could of course use things like feof and such, except that GNU tail
> currently uses file-descriptor-based methods rather than stream based
> ones, and feof only works on streams. So you'd need to re-write the lot.

feof won't buy you anything, it can only report EOF after a previous fgetc
has read past EOF.  And doing non-blocking I/O on streams is messy at
best.

> And even then feof basically does a getc to check if it gets EOF I
> beleive (could be wrong there).

feof uses the remembered result from the last call to fgetc (directly or
indirectly).  Don't mix that with Pascal's eof function, which indeed does
a read-ahead.

Andreas.

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Andreas Schwab, SuSE Labs, address@hidden
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