1.\" $NetBSD: lrint.3,v 1.2 2024/01/26 19:27:30 nros Exp $ 2.\" 3.\" Copyright (c) 2005 David Schultz <das@FreeBSD.org> 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD: /repoman/r/ncvs/src/lib/msun/man/lrint.3,v 1.2.2.2 2005/03/01 16:18:39 brueffer Exp $ 28.\" 29.Dd January 24, 2024 30.Dt LRINT 3 31.Os 32.Sh NAME 33.Nm llrint , 34.Nm llrintf , 35.Nm llrintl , 36.Nm lrint , 37.Nm lrintf , 38.Nm lrintl 39.Nd convert to integer 40.Sh LIBRARY 41.Lb libm 42.Sh SYNOPSIS 43.In math.h 44.Ft long long 45.Fn llrint "double x" 46.Ft long long 47.Fn llrintf "float x" 48.Ft long long 49.Fn llrintl "long double x" 50.Ft long 51.Fn lrint "double x" 52.Ft long 53.Fn lrintf "float x" 54.Ft long 55.Fn lrintl "long double x" 56.Sh DESCRIPTION 57The 58.Fn lrint 59function returns the integer nearest to its argument 60.Fa x 61according to the current rounding mode. 62.Pp 63The 64.Fn llrint , 65.Fn llrintf , 66.Fn llrintl , 67.Fn lrintf , 68and 69.Fn lrintl 70functions differ from 71.Fn lrint 72only in their input and output types. 73.Sh RETURN VALUES 74The 75.Nm llrint , 76.Nm llrintf , 77.Nm llrintl , 78.Nm lrint , 79.Nm lrintf , 80and 81.Nm lrintl 82functions return the integer nearest to their argument 83.Fa x 84according to the current rounding mode. 85If the rounded result is too large to be represented as a 86.Vt long long 87or 88.Vt long 89value, respectively, 90.\" an invalid exception is raised and 91the return value is undefined. 92.\" Otherwise, if 93.\" .Fa x 94.\" is not an integer, 95.\" .Fn lrint 96.\" raises an inexact exception. 97.\" If 98.\" .Fa x 99.\" is too large, a range error may occur. 100.Sh SEE ALSO 101.\" .Xr lround 3 , 102.Xr math 3 , 103.Xr rint 3 , 104.Xr round 3 105.Sh STANDARDS 106The 107.Fn llrint , 108.Fn llrintf , 109.Fn llrintl , 110.Fn lrint , 111.Fn lrintf , 112and 113.Fn lrintl 114functions conform to 115.St -isoC-99 . 116