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Document intptr_t and uintptr_t.

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Mike Barcroft 2002-09-15 20:12:20 +00:00
parent ec541fb314
commit beddcd8bcb
1 changed files with 22 additions and 7 deletions
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29
share/man/man7/stdint.7
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@ -24,12 +24,12 @@
.\"
.\" $FreeBSD$
.\"
.Dd April 6, 2002
.Dd September 15, 2002
.Dt STDINT 7
.Os
.Sh NAME
.Nm stdint
.Nd "integer types"
.Nd "standard integer types"
.Sh SYNOPSIS
.In stdint.h
.Sh DESCRIPTION
@ -37,7 +37,8 @@ The
.Aq Pa stdint.h
header provides source-portable integer types of a specific
size, smallest memory footprint with a minimum size, fastest
access speed with a minimum size, and largest integer size.
access speed with a minimum size, largest integer size, and
those capable of storing pointers.
.Pp
The types
.Vt int8_t ,
@ -103,6 +104,24 @@ provides an unsigned integer type large
enough to hold any other unsigned integer.
These types are generally the largest signed and unsigned
integer types available on a specific architecture.
.Pp
The type
.Vt intptr_t
provides a signed integer type with the ability to hold a pointer to
.Vt void ,
that can later be converted back to a pointer to
.Vt void .
.Pp
The type
.Vt uintptr_t
provides an unsigned integer type with the ability to hold a pointer to
.Vt void ,
that can later be converted back to a pointer to
.Vt void .
.Pp
Additionally, the
.Aq Pa stdint.h
header defines some macros, but none of them are documented here.
.Sh STANDARDS
The
.Aq Pa stdint.h
@ -115,7 +134,3 @@ The
.Aq Pa stdint.h
header was first introduced in
.Fx 5.0 .
.Sh BUGS
Not all of the
.Aq Pa stdint.h
header's features are documented.