[pacman-dev] [PATCH] Fix gcc strict-overflow error
Allan McRae
allan at archlinux.org
Tue Sep 20 12:50:29 UTC 2016
On 18/09/16 01:13, Rikard Falkeborn wrote:
> Recent gcc (tested with 6.2.1) produces the following error when
> compiling with both --enable-warningflags and --enable-debug.
> In particular, it seems it is the combination of GCC_STACK_PROTECT_LIB
> and -Wstrict-overflow=5 produces the error.
>
> be_local.c:609:4: error: assuming signed overflow does not occur
> when simplifying conditional
> [-Werror=strict-overflow]
> if(count > 0) {
>
> Fix this by changing the type of count from int to size_t, which is
> fine since count is never negative.
Thanks.
I was a bit wary given we are still returning casting to an int in the
return, but this brings the local db handling of counts in line with the
sync_db function so doe snot make anything worse...
Allan
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