mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-23 11:16:33 +00:00
dc36d6f9bb
Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
76 lines
2.6 KiB
Groff
76 lines
2.6 KiB
Groff
.\" Copyright (c) 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.Dd December 19, 2022
|
|
.Dt DIGITTOINT 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm digittoint ,
|
|
.Nm digittoint_l
|
|
.Nd convert a numeric character to its integer value
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In ctype.h
|
|
.Ft int
|
|
.Fn digittoint "int c"
|
|
.Ft int
|
|
.Fn digittoint_l "int c" "locale_t loc"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn digittoint
|
|
and
|
|
.Fn digittoint_l
|
|
functions convert a numeric character to its corresponding integer value.
|
|
The character can be any decimal digit or hexadecimal digit.
|
|
With hexadecimal characters, the case of the values does not matter.
|
|
.Pp
|
|
The
|
|
.Fn digittoint_l
|
|
function takes an explicit locale argument, whereas the
|
|
.Fn digittoint
|
|
function use the current global or per-thread locale.
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn digittoint
|
|
and
|
|
.Fn digittoint_l
|
|
functions always return an integer from the range of 0 to 15.
|
|
If the given character was not a digit as defined by
|
|
.Xr isxdigit 3
|
|
or
|
|
.Xr isxdigit_l 3 ,
|
|
the function will return 0.
|
|
.Sh SEE ALSO
|
|
.Xr ctype 3 ,
|
|
.Xr ctype_l 3 ,
|
|
.Xr isdigit 3 ,
|
|
.Xr isdigit_l 3 ,
|
|
.Xr isxdigit 3 ,
|
|
.Xr isxdigit_l 3 ,
|
|
.Xr xlocale 3
|