[erlang-questions] Location options in file:pread/2 and /3

Zvi <>
Thu May 8 05:33:15 CEST 2008


yes I was opening file in raw mode.


Bjorn Gustavsson wrote:
> Zvi <> writes:
>> Are all these options are still supported in file:pread/2 and
>> file:pread/3 ?
>> >From my tests, only file:position accepts them. file:pread/2 and /3 only
>> accepts Offset and giving {error,badarg} for the rest.
> They are accepted if the file has not been opened in raw mode.
> There is a note about that in the documentation for pread/3:
> "If IoDevice has been opened in raw mode, some restrictions apply:
> Location is only allowed to be an integer; and the current position of the
> file is undefined after the operation."
> /Bjorn
> -- 
> Björn Gustavsson, Erlang/OTP, Ericsson AB
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