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From: David Brown <david.brown@hesbynett.no>
Newsgroups: comp.lang.c
Subject: Re: Top 10 most common hard skills listed on resumes...
Date: Mon, 9 Sep 2024 21:04:10 +0200
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On 09/09/2024 20:46, Kaz Kylheku wrote:
> On 2024-09-09, David Brown <david.brown@hesbynett.no> wrote:
>> On 09/09/2024 18:57, Bart wrote:
>>> On 09/09/2024 17:21, Waldek Hebisch wrote:
>>>> Keith Thompson <Keith.S.Thompson+u@gmail.com> wrote:
>>>
>>>>> C23 doesn't add any new support for 128-bit integers.
>>>
>>> So what does _Bitint do with a width of 128 bits?
>>>
>>
>> _BitInt types are not "integer types".  Nor is gcc's __int128 type.
> 
> How can we write a program which, in an implementation which has a
> __int128 type, outputs "yes" if it is an integer type, otherwise "no"?
> 

#include <stdio.h>

int main() {
     auto const x = 0x1'0000'0000'0000'0000;
     if (x > 0xffff'ffff'ffff'ffff) {
         printf("yes\n");
     } else {
         printf("no\n");
     }
}