1.\" 2.\" Copyright (c) 2005 Tim J. Robbins 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd July 21, 2005 29.Dt RPMATCH 3 30.Os 31.Sh NAME 32.Nm rpmatch 33.Nd "determine whether the response to a question is affirmative or negative" 34.Sh LIBRARY 35.Lb libc 36.Sh SYNOPSIS 37.In stdlib.h 38.Ft int 39.Fn rpmatch "const char *response" 40.Sh DESCRIPTION 41The 42.Fn rpmatch 43function determines whether the 44.Fa response 45argument is an affirmative or negative response to a question 46according to the current locale. 47.Sh RETURN VALUES 48The 49.Fn rpmatch 50functions returns: 51.Bl -tag -width indent 52.It 1 53The response is affirmative. 54.It 0 55The response is negative. 56.It \&-1 57The response is not recognized. 58.El 59.Sh SEE ALSO 60.Xr nl_langinfo 3 , 61.Xr setlocale 3 62.Sh HISTORY 63The 64.Fn rpmatch 65function appeared in 66.Fx 6.0 . 67