# Ping: \[PATCH\] uapi: Make \_\_{u,s}64 match {u,}int64\_t in userspace

- From: Alejandro Colomar \<hidden\>
- Date: 2022-06-17 12:13:18 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2022/06/1825172
- Thread: https://ratatoskr.run/linux-arch/2021/11/1581823/t.md

```text
Hi Cyril,

On 12/8/21 16:33, Cyril Hrubis wrote:
> Hi!
>>> I could be persuaded otherwise with an example of a program for which
>>> changing __s64 from 'long long' to 'long' would break *binary* backward
>>> compatibility, or similarly for __u64.
>>
>> C++ could break.
>
> Thinking of this again we can detect C++ as well so it can be safely
> enabled just for C with:
>
> #if !defined(__KERNEL__) && !defined(__cplusplus) && __BITSPERLONG == 64
> # include <asm-generic/int-l64.h>
> #else
> # include <asm-generic/int-ll64.h>
> #endif
>

I'm very interested in seeing this merged, as that would allow simplifying the man-pages by removing unnecessary kernel details such as u64[1].  How is the state of this patch?

Cheers,

Alex


[1]: <https://lore.kernel.org/linux-man/20210423230609.13519-1-alx.manpages@gmail.com/T/#u>

-- 
Alejandro Colomar
<http://www.alejandro-colomar.es/>
```