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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Top 10 most common hard skills listed on resumes...
Date: Tue, 10 Sep 2024 12:49:44 -0700
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Tim Rentsch <tr.17687@z991.linuxsc.com> writes:
[...]
> Assuming all that is right, I recommend
>
>     typedef  __uint128_t  U128;
>     typedef   __int128_t  S128;
>
> which works in both gcc and clang (I don't know yet about
> Visual Studio).

The documented names are `__int128` and `unsigned __int128`.

Both gcc and clang do recognize `__int128_t` and `__uint128_t`,
but I wouldn't recommend relying on an undocumented feature.

__int128 is treated as a keyword.  __int128_t appears to be a predefined
identifier; it's visible even if no headers are included.  __int128 and
__int128_t are compatible types, probably the same type.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */