Re: [Mingw-users] tail fails on large files

[Roger W. <ROG...@sa...>]

Daniel Raymond wrote:
>>>> Wouldn't fseek's 'long int' argument be inadequate for
>>>> your file, because 2^32 < 21G ?
>>>>         
>>> 1) There should be no problem fitting -1024 into a long int.
>>>       
>> No, but what does fseek() return?  It's the resultant offset from 
>> *start* of file, and 21G - 1024 cannot be computed in a long int,
>> so fseek() *must* fail.
>>     
>
> I've gotten several responses defending fseek()'s misbehavior but nobody has 
> offered me a solution.  Surely I am not the first person to try to read large 
> files in MinGW.
>
>
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i think
__CRT_INLINE off64_t lseek64 (int fd, off64_t offset, int whence)
is what you are looking for. Its in io.h

-- 
Roger Wells, P.E.
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