Re: lua bug - loadfile gets stdin confused

[David Kastrup <dak@...>]

Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> writes:

>> For windows:
>> 
>>   _get_osfhandle(_fileno(stdout))  > 0
>> 
>> means valid.
>
> Unix has fileno, but if stdio is recycling FILE* then it probably is
> also recycling filenos. So opening a file right after closing stdin
> will probably create a file whose fileno is 0. That's the whole
> problem.

It is actually an old idiom in Unix to close those file descriptors
and expect them to open from the beginning.  It predates doing this by
dup2 and similar calls.

-- 
David Kastrup