Re: [Msys2-users] stat.h and large file sizes?

[Greg J. <gv...@gm...>]

OK I just checked on linux 64-bit, it was ok with that so apparently now
its a cygwin64 shortcoming.

On Mon, Jan 19, 2015 at 3:12 PM, Greg Jung <gv...@gm...> wrote:

>
>
> On Mon, Jan 19, 2015 at 1:59 PM, David Macek <dav...@gm...>
> wrote:
>
>> On 19. 1. 2015 22:55, Greg Jung wrote:
>> > I'm working on a routine that returns file sizes and find that the
>> 32-bit builds don't accomodate a larger byte-count typical of the large
>> movie files or backup files found these days.  I'm testing cygwin64 (native
>> cygwin build) and mingw/msys 32-bit build:64-bit version does ok: .
>> >   I presume when I go mingw64 it'll be positive, but is there a way to
>> trick the 32-bit builds to bring a 64-bit size value?
>>
>> I think you should be able to use some form of stat64, which uses 64-bit
>> integers even on 32-bit platforms. See for example:
>> http://stackoverflow.com/a/12568257
>>
>> --
>> David Macek
>>
>  Yes this worked in my ming build (just now), i set all
>  "struct stat" to "struct stat64"
> and lstat -> lstat64
> and
> #ifdef _WIN32
> #define lstat64(x,y) stat64(x,y)
> #endif
> but now the cygwin compilation has complaints:
>
> stat64 statStruct’ has incomplete type and cannot be defined
>      struct stat64    statStruct;
>                       ^
> /f/gdl/src/file.cpp:402:58: error: ‘lstat64’ was not declared in this scope
>       int actStat = lstat64( testFile.c_str(), &statStruct);
>                                                           ^
> /so I take a look at the cygwin64 /usr/include/sys/stat.h, I can't find
> lstat64 at all:
> greg@Homerw7 /f/gdl/src
> $ grep lstat /usr/include/sys/stat.h
> int     _EXFUN(lstat,( const char *__restrict __path, struct stat
> *__restrict __buf ));
>
> $ grep  -B3 -A2 stat64 /usr/include/sys/stat.h
> #ifdef __CYGWIN__
> #include <cygwin/stat.h>
> #ifdef _COMPILING_NEWLIB
> #define stat64 stat
> #endif
> #else
> --
> int     _EXFUN(_stat,( const char *__restrict __path, struct stat
> *__restrict __sbuf ));
> int     _EXFUN(_mkdir,( const char *_path, mode_t __mode ));
> #ifdef __LARGE64_FILES
> struct stat64;
> int     _EXFUN(_stat64,( const char *__restrict __path, struct stat64
> *__restrict __sbuf ));
> int     _EXFUN(_fstat64,( int __fd, struct stat64 *__sbuf ));
> #endif
> #endif
>
>
>