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-.\"
-.\" Copyright (c) 2005 Tim J. Robbins
-.\" 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.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
-.\"
-.\" $FreeBSD$
-.\"
-.Dd July 21, 2005
-.Dt RPMATCH 3
-.Os
-.Sh NAME
-.Nm rpmatch
-.Nd "determine whether the response to a question is affirmative or negative"
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In stdlib.h
-.Ft int
-.Fn rpmatch "const char *response"
-.Sh DESCRIPTION
-The
-.Fn rpmatch
-function determines whether the
-.Fa response
-argument is an affirmative or negative response to a question
-according to the current locale.
-.Sh RETURN VALUES
-The
-.Fn rpmatch
-functions returns:
-.Bl -tag -width indent
-.It 1
-The response is affirmative.
-.It 0
-The response is negative.
-.It \&-1
-The response is not recognized.
-.El
-.Sh SEE ALSO
-.Xr nl_langinfo 3 ,
-.Xr setlocale 3
-.Sh HISTORY
-The
-.Fn rpmatch
-function appeared in macOS 10.15.