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Date: Thu, 25 Jun 2020 13:33:40 -0400
From: Rich Felker <dalias@...c.org>
To: musl@...ts.openwall.com
Subject: Re: [PATCH] Fix signed compare warning
On Thu, Jun 25, 2020 at 08:58:41AM -0700, Khem Raj wrote:
>
>
> On 6/24/20 4:20 PM, Daniel Santos wrote:
> > Signed-off-by: Daniel Santos <daniel.santos@...ox.com>
> > ---
> > src/thread/__timedwait.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/src/thread/__timedwait.c b/src/thread/__timedwait.c
> > index 666093be..9829b93e 100644
> > --- a/src/thread/__timedwait.c
> > +++ b/src/thread/__timedwait.c
> > @@ -38,7 +38,7 @@ int __timedwait_cp(volatile int *addr, int val,
> > if (priv) priv = FUTEX_PRIVATE;
> >
> > if (at) {
> > - if (at->tv_nsec >= 1000000000UL) return EINVAL;
> > + if ((unsigned long)at->tv_nsec >= 1000000000UL) return EINVAL;
> > if (__clock_gettime(clk, &to)) return EINVAL;
> > to.tv_sec = at->tv_sec - to.tv_sec;
> > if ((to.tv_nsec = at->tv_nsec - to.tv_nsec) < 0) {
> >
> may be use < 0 || >= 1000000000L and avoid the cast.
> there is a similar issue in src/thread/pthread_cond_timedwait.c as well
This is not a bug but intentional usage of the language.
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