Re: [PATCH 13/14] git-compat-util.h: fix integer overflow on IL32P64 systems
On Wed, Oct 08, 2014 at 01:02:10PM -0700, Junio C Hamano wrote:
Show 26 quoted lines
> Junio C Hamano <gitster@pobox.com> writes:
>
> > Marat Radchenko <marat@slonopotamus.org> writes:
> >
> >> Signed-off-by: Marat Radchenko <marat@slonopotamus.org>
> >> ---
> >> git-compat-util.h | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/git-compat-util.h b/git-compat-util.h
> >> index b338277..101c9d7 100644
> >> --- a/git-compat-util.h
> >> +++ b/git-compat-util.h
> >> @@ -474,7 +474,7 @@ extern int git_munmap(void *start, size_t length);
> >> #endif
> >>
> >> #define DEFAULT_PACKED_GIT_LIMIT \
> >> - ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
> >> + ((size_t)(1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
> >
> > 1024 * 1024 * 8192 overflows 32-bit unsigned, but is size_t always
> > large enough? Just checking.
>
> Heh, I was being silly. This gives the default value for a variable
> whose type is size_t, so it would better fit. So please throw 13 in
> the list of changes I found sensible in the other message.
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Marat Radchenko <marat@slonopotamus.org>