Re: Migrating to larger numbers

H. Peter Anvin (hpa@transmeta.com)
8 Jun 1999 22:05:13 GMT

Followup to: <7ITCO6lHw-B@khms.westfalen.de>
By author: kaih@khms.westfalen.de (Kai Henningsen)
In newsgroup: linux.dev.kernel
>
> There's only one large-capacity time_t allowed by the C standard (or
> POSIX) that can hold more than the largest integer type - double. (Well,
> or float if it's indeed larger.) Do you really want to use floating-point
> here?
>

That's not allowed by POSIX. time_t is among the types specified by
POSIX to be an *integral* type -- floating-point is not allowed (and
if it did, "long double" would be allowed.)

Anyhow, under C9x "long long" will be a standardized and required data
type, required to hold at least 64 bits.

-hpa

-- 
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