Re: [RFH] gcc constant expression warning...

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sun, 28 Oct 2007, Linus Torvalds wrote:

> 
> 
> On Sun, 28 Oct 2007, Antti-Juhani Kaijanaho wrote:
> >
> > A correct fix would be to check for the size of off_t in some other (and
> > defined) manner, but I don't know off_t well enough to suggest one.
> 
> In this case, it's trying to make sense that "off_t" can hold more than 32
> bits. So I think that test can just be rewritten as
> 
> 	if (sizeof(off_t) <= 4) {
> 		munmap(idx_map, idx_size);
> 		return error("pack too large for current definition of off_t in %s", path);
> 	}
> 
> instead.

The test must also make sure off_t isn't signed, since in that case it 
can only hold 31 bits.


Nicolas
-
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Kernel Development]     [Gcc Help]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [V4L]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]     [Fedora Users]

  Powered by Linux