Re: CVS commit: src/tests/lib/libm

[Roland Illig <roland.illig%gmx.de@localhost>]

Am 02.05.2024 um 05:30 schrieb Robert Elz:
> Module Name:	src
> Committed By:	kre
> Date:		Thu May  2 03:30:07 UTC 2024
>
> Modified Files:
> 	src/tests/lib/libm: t_fe_round.c
>
> Log Message:
> Use intmax_t instead of long int when trying to represent very large
> integers (10^50 or so), so we don't exceed the capacity of systems where
> long int is only 32 bits.

In the lint tests (which don't have a C preprocessor available), I use
the following typedefs to get fixed-width integer types:

typedef signed char int8_t;
typedef short int16_t;
typedef int int32_t;
typedef long long int64_t;

These types are the same on all platforms supported by lint, and I guess
by NetBSD as a whole.

I particularly avoid the types 'long' and 'long double', as they vary
between the platforms.

Curiously, intmax_t is a 64-bit type even on amd64, where __int128_t is
also available, but I don't use that because that type is not predefined.

Roland