[GRASS-dev] Re: [GRASS-user] r.in.xyz: Could open text file ~ 2.5GB

[Glynn Clements]

Hamish wrote:

> > > If we get that, should every LFS compliant module be
> > > written like:
> > > 
> > > #ifdef HAVE_FTELLO
> > >     off_t filesize;
> > > #else
> > >     long filesize;
> > > #endif
> > 
> > No. You may as well just use "off_t filesize" unconditionally. An
> > "off_t" will always be large enough to hold a "long".
> 
> will all compilers (within reason) know about the off_t type?

It's a POSIX-ism, although it is provided by the MSVCRT headers:

http://msdn2.microsoft.com/en-us/library/323b6b3k.aspx

Also, a lot of GRASS (including the core raster I/O) will fail to
compile without it.

On some platforms, you may need to explicitly include <sys/types.h>
for off_t to be visible.

-- 
Glynn Clements <glynn at gclements.plus.com>