Re: [boost] Re: Boost policy on relying on std library implementationdefined behaviour

From: Rene Rivera (grafik.list_at_[hidden])
Date: 2005-03-25 18:05:13

Beman Dawes wrote:
> "Jonathan Turkanis" <technews_at_[hidden]> wrote in message 
> news:d1v087$6r0$1_at_sea.gmane.org...
> 
>>Hi All,
>>
>>Is there a reason to avoid providing a uniform interface to
>>implementation-defined standard library features?
>>
>>One of the most often heard complaints about the standard iostreams 
>>library is
>>that there is no portable way to seek within a file stream using large 
>>(64-bit)
>>offsets.
> 
> 
> I really want to see this fixed in the standard library. Any interest in 
> getting a proposal together?
> 
> It seems to me the first step is to fix the <cstdio> stuff inherited from 
> the C library. An easy way to do that is to propose the addition of fseeko 
> and ftello functions. They are already provided on Solaris, FreeBSD, HP-UX, 
> NetBSD, OpenBSD, and HP/Compaq/DEC Alpha OSF/1. SGI IRIX offers the same 
> functionality, but named fseek64() and ftell64(). Apparently Linux is the 
> only weak spot in the POSIX world.

Hmm.. How is Linux the weak spot? It does provide lseek64 and fseeko 
under certain conditions, and ftell64 is implementable as 
lseek64(fd,0,SEEK_CUR).

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