Re: [Mingw-users] LFS - use of fseeko vs fseek

[Earnie B. <ea...@us...>]

You should submit it here:

https://sourceforge.net/tracker/?group_id=2435&atid=302435

Earnie.

Kees Zeelenberg wrote:

>Yes, I will. Should the patch be sent to the Cygwin patches list or the
>Mingw patches list?
>
>Kees
>
>----- Oorspronkelijk bericht ----- 
>Van: "Earnie Boyd" <ea...@us...>
>Aan: <min...@li...>
>Verzonden: dinsdag 18 mei 2004 12:33
>Onderwerp: Re: [Mingw-users] LFS - use of fseeko vs fseek
>
>
>  
>
>>So Kees, would you mind putting together a patch to mingwex from the
>>official CVS at sources.redhat.com?
>>
>>Earnie
>>
>>Kees Zeelenberg wrote:
>>
>>    
>>
>>>It is easy to implement fseeko64 and ftello64 by means of fsetpos and
>>>fgetpos,
>>>which work with 64-bit integers. This is how gw32c has implemented them.
>>>For lseek64, msvcrt has already _lseeki64.
>>>
>>>int
>>>fseeko64 (fp, offset, whence)
>>>    FILE* fp;
>>>    __int64 offset;
>>>    int whence;
>>>{
>>> fpos_t pos;
>>> if (whence == SEEK_CUR) {
>>>    fgetpos(fp, &pos);
>>>    pos += (fpos_t) offset;
>>> }
>>> else if (whence == SEEK_END)
>>>    pos = (fpos_t) (_filelengthi64(fileno(fp)) + offset);
>>> else if (whence == SEEK_SET)
>>>   pos = (fpos_t) offset;
>>> return fsetpos(fp, &pos);
>>>}
>>>
>>>__int64
>>>ftello64 (fp)
>>>    FILE *fp;
>>>{
>>> fpos_t pos;
>>> if (fgetpos(fp, &pos))
>>>   return (__int64) -1LL;
>>> else
>>>   return ((__int64) pos);
>>>}
>>>
>>>Kees Zeelenberg
>>>
>>>
>>>----- Oorspronkelijk bericht ----- 
>>>Van: "Luke Dunstan" <cod...@ho...>
>>>Aan: <min...@li...>
>>>Verzonden: dinsdag 18 mei 2004 4:18
>>>Onderwerp: Re: [Mingw-users] LFS - use of fseeko vs fseek
>>>
>>>
>>>
>>>
>>>      
>>>
>>>>----- Original Message ----- 
>>>>From: <Lar...@ao...>
>>>>To: <min...@li...>
>>>>Sent: Tuesday, May 18, 2004 3:43 AM
>>>>Subject: [Mingw-users] LFS - use of fseeko vs fseek
>>>>
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>>>The stdio.h in the includes library for MinGW does not contain
>>>>>
>>>>>
>>>>>          
>>>>>
>>>definitions
>>>
>>>
>>>      
>>>
>>>>for large file system file verbs like fseeko and ftello. The CYGWIN
>>>>
>>>>
>>>>        
>>>>
>>>version
>>>
>>>
>>>      
>>>
>>>>does, however. Can I simply insert the cygwin version of the include
>>>>directory in PATH before the MinGW version of the include directory?
>>>>
>>>>No. Headers are usually no use without the corresponding libraries.
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>>>If not, are there plans for porting the LFS I/O verb set to MSYS?
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>I assume you meant to say "porting ... to MinGW" and are using MinGW GCC
>>>>
>>>>
>>>>        
>>>>
>>>not
>>>
>>>
>>>      
>>>
>>>>msysDVLPR, so the answer is no. If it is possible to implement fseeko()
>>>>without either access to the fseek() source code or reimplementing
>>>>        
>>>>
>fseek()
>  
>
>>>>then a patch to support it would probably be accepted. Google found this
>>>>though:
>>>>
>>>>http://gnuwin32.sourceforge.net/packages/libgw32c.htm
>>>>
>>>>Luke
>>>>
>>>>
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>>    
>>
>
>
>
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