Re: [Boost-users] [iostreams] How to make a seekable device seek

Subject: Re: [Boost-users] [iostreams] How to make a seekable device seek
From: Bo Jensen (jensen.bo_at_[hidden])
Date: 2010-04-30 15:15:21

Hi Daniel,
Thanks for your reply, I have resolved the problem by using a iostream
seek call instead.
Regards
Bo

On Fri, Apr 30, 2010 at 8:53 PM, Daniel Eiband <eiband_at_[hidden]> wrote:
> Hi, what happens when you try to seek to another position than 0:
>
> buf.seekg(100);
>
> I remember seeing code (and a resolved bug too) that optimizes no-seeks.
> Your position was probably 0 before the call.
>
> Kind regards,
>
> Daniel
>
> Am 30.04.2010 01:10, schrieb Bo Jensen:
>>
>> I have a seekable iostream device with the tag set to :
>>
>>      typedef boost::iostreams::input_seekable catagory;
>>
>> If I have not defined the functions get and seek, it will not compile,
>> which is expected, so far so good.
>> But when I called it like this :
>>
>>           mydevice test("somefile.txt");
>>
>>           boost::iostreams::stream<mydevice>  buf(test);
>>
>>           buf.seekg(0);
>>
>> it never enters my seek function, which I would expect. I am sure the
>> solution must be obvious. Any pointers here ?
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>
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