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Date: Sun, 5 Jun 2011 14:31:27 -0400 (EDT)
From: "Sean C. Farley" <scf@FreeBSD.org>
To: Ben Laurie <ben@links.org>
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Cc: hackers@FreeBSD.org
Subject: Re: int64_t and printf
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On Sun, 5 Jun 2011, Ben Laurie wrote:

> So, for example int64_t has no printf modifier I am aware of. Likewise 
> its many friends.
>
> In the past I've handled this by having a define somewhere along the 
> lines of...
>
> #if <something>
> # define INT_64_T_FMT "%ld"
> #else
> # define INT_64_T_FMT "%lld"
> #endif
>
> but I have no idea where to put such a thing in FreeBSD. Opinions? 
> Also, I guess I'd really need to do a modifier rather than a format, 
> for full generality.

You need to include inttypes.h, which includes machine/_inttypes.h. 
This will provide the appropriate macro which in this case is PRId64.

Sean
-- 
scf@FreeBSD.org