158f0484fSRodney W. Grimes.\" Copyright (c) 1991, 1993 258f0484fSRodney W. Grimes.\" The Regents of the University of California. All rights reserved. 358f0484fSRodney W. Grimes.\" 458f0484fSRodney W. Grimes.\" This code is derived from software contributed to Berkeley by 558f0484fSRodney W. Grimes.\" the American National Standards Committee X3, on Information 658f0484fSRodney W. Grimes.\" Processing Systems. 758f0484fSRodney W. Grimes.\" 858f0484fSRodney W. Grimes.\" Redistribution and use in source and binary forms, with or without 958f0484fSRodney W. Grimes.\" modification, are permitted provided that the following conditions 1058f0484fSRodney W. Grimes.\" are met: 1158f0484fSRodney W. Grimes.\" 1. Redistributions of source code must retain the above copyright 1258f0484fSRodney W. Grimes.\" notice, this list of conditions and the following disclaimer. 1358f0484fSRodney W. Grimes.\" 2. Redistributions in binary form must reproduce the above copyright 1458f0484fSRodney W. Grimes.\" notice, this list of conditions and the following disclaimer in the 1558f0484fSRodney W. Grimes.\" documentation and/or other materials provided with the distribution. 16*fbbd9655SWarner Losh.\" 3. Neither the name of the University nor the names of its contributors 1758f0484fSRodney W. Grimes.\" may be used to endorse or promote products derived from this software 1858f0484fSRodney W. Grimes.\" without specific prior written permission. 1958f0484fSRodney W. Grimes.\" 2058f0484fSRodney W. Grimes.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2158f0484fSRodney W. Grimes.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2258f0484fSRodney W. Grimes.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2358f0484fSRodney W. Grimes.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2458f0484fSRodney W. Grimes.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2558f0484fSRodney W. Grimes.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2658f0484fSRodney W. Grimes.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2758f0484fSRodney W. Grimes.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2858f0484fSRodney W. Grimes.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2958f0484fSRodney W. Grimes.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3058f0484fSRodney W. Grimes.\" SUCH DAMAGE. 3158f0484fSRodney W. Grimes.\" 32838200ffSDavid Schultz.Dd March 29, 2008 3358f0484fSRodney W. Grimes.Dt MODF 3 3458f0484fSRodney W. Grimes.Os 3558f0484fSRodney W. Grimes.Sh NAME 36838200ffSDavid Schultz.Nm modf , 37838200ffSDavid Schultz.Nm modff , 38838200ffSDavid Schultz.Nm modfl 3958f0484fSRodney W. Grimes.Nd extract signed integral and fractional values from floating-point number 4025bb73e0SAlexey Zelkin.Sh LIBRARY 41838200ffSDavid Schultz.Lb libm 4258f0484fSRodney W. Grimes.Sh SYNOPSIS 4332eef9aeSRuslan Ermilov.In math.h 4458f0484fSRodney W. Grimes.Ft double 4558f0484fSRodney W. Grimes.Fn modf "double value" "double *iptr" 46838200ffSDavid Schultz.Ft float 47838200ffSDavid Schultz.Fn modff "float value" "float *iptr" 48838200ffSDavid Schultz.Ft long double 49838200ffSDavid Schultz.Fn modfl "long double value" "long double *iptr" 5058f0484fSRodney W. Grimes.Sh DESCRIPTION 5158f0484fSRodney W. GrimesThe 52838200ffSDavid Schultz.Fn modf , 53838200ffSDavid Schultz.Fn modff , 54838200ffSDavid Schultzand 55838200ffSDavid Schultz.Fn modfl 56838200ffSDavid Schultzfunctions break the argument 5758f0484fSRodney W. Grimes.Fa value 5858f0484fSRodney W. Grimesinto integral and fractional parts, each of which has the 5958f0484fSRodney W. Grimessame sign as the argument. 6058f0484fSRodney W. GrimesIt stores the integral part as a 61838200ffSDavid Schultzfloating point number 6258f0484fSRodney W. Grimesin the object pointed to by 6358f0484fSRodney W. Grimes.Fa iptr . 6458f0484fSRodney W. Grimes.Sh RETURN VALUES 65838200ffSDavid SchultzThese functions return the signed fractional part of 6658f0484fSRodney W. Grimes.Fa value . 6758f0484fSRodney W. Grimes.Sh SEE ALSO 6858f0484fSRodney W. Grimes.Xr frexp 3 , 6958f0484fSRodney W. Grimes.Xr ldexp 3 , 7058f0484fSRodney W. Grimes.Xr math 3 7158f0484fSRodney W. Grimes.Sh STANDARDS 7258f0484fSRodney W. GrimesThe 73838200ffSDavid Schultz.Fn modf , 74838200ffSDavid Schultz.Fn modff , 75838200ffSDavid Schultzand 76838200ffSDavid Schultz.Fn modfl 77838200ffSDavid Schultzfunctions conform to 78838200ffSDavid Schultz.St -isoC-99 . 79