Date: Wed, 31 Jan 2001 21:35:15 -0600 From: Lucas Bergman <lucas@slb.to> To: Mike Meyer <mwm@mired.org> Cc: freebsd-questions@freebsd.org Subject: Re: Printf question Message-ID: <20010131213515.A12876@billygoat.slb.to> In-Reply-To: <14968.51016.322465.80746@guru.mired.org>; from mwm@mired.org on Wed, Jan 31, 2001 at 08:17:44PM -0600 References: <109394@toto.iv> <14968.51016.322465.80746@guru.mired.org>
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> > What you probably want is the `%llu' specifier instead of `%ld'.
> > Note that `long long' is a _very_ recent addition to the C
> > standard, so proceed with caution if you want your program to be
> > portable.
>
> The man page doesn't mention ll as a modifier, but talks about q. I
> get the results he wants with %qd, %qu, or %llu - but not %lld.
> -Wall doesn't complain about either one (on -current, anyway).
Hrmm?
roostor % echo 2 ^ 35 | bc
34359738368
roostor % cat foo.c
#include <stdio.h>
int
main(void)
{
long long x = 1LL << 35;
printf("%lld\n", x);
return 0;
}
roostor % gcc -Wall foo.c
roostor % ./a.out
34359738368
Lucas
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