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system_data_types.7: Document ptrdiff_t 

Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Alejandro Colomar 2020-09-18 14:04:40 +02:00 committed by Michael Kerrisk
parent dd06f85245
commit 515348d543
1 changed files with 24 additions and 1 deletions
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man7/system_data_types.7
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@ -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:
@ -224,8 +245,10 @@ 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