[PATCH 3/4] system_data_types.7: Document ptrdiff_t

[Michael Kerrisk (man-pages)]

Hello Alex,

On 9/18/20 2:04 PM, Alejandro Colomar wrote:
> Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>

Patch applied.

Thanks,

Michael

> ---
>  man7/system_data_types.7 | 25 ++++++++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
> 
> diff --git a/man7/system_data_types.7 b/man7/system_data_types.7
> index 5ef470386..8969ee966 100644
> --- a/man7/system_data_types.7
> +++ b/man7/system_data_types.7
> @@ -62,6 +62,27 @@ system_data_types \- overview of system data types
>  .\"
>  .\"		* See also
>  .TP
> +.I ptrdiff_t
> +.IP
> +Include:
> +.I <stddef.h>.
> +.IP
> +Used for a count of elements, and array indices.
> +It is the result of subtracting two pointers.
> +According to the C language standard, it shall be a signed integer type
> +capable of storing values in the range
> +.BR "" [ PTRDIFF_MIN ,
> +.BR PTRDIFF_MAX ].
> +.IP
> +Conforming to: C99 and later; POSIX.1-2001 and later.
> +.IP
> +See also the
> +.\".I regoff_t ,	FIXME: uncomment when regoff_t is documented.
> +.I size_t
> +and
> +.I ssize_t
> +types in this page.
> +.TP
>  .I sigval
>  .IP
>  Include:
> @@ -221,8 +242,10 @@ See also:
>  .BR write (2)
>  .IP
>  See also the
> +.I ptrdiff_t
> +and
>  .I size_t
> -type in this page.
> +types in this page.
>  .TP
>  .I suseconds_t
>  .IP
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/