| The Android Open Source Project | a27d2ba | 2008-10-21 07:00:00 -0700 | [diff] [blame^] | 1 | .\" Copyright (c) 1991 The Regents of the University of California. |
| 2 | .\" All rights reserved. |
| 3 | .\" |
| 4 | .\" @(#)fabs.3 5.1 (Berkeley) 5/2/91 |
| 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 | .\" 3. All advertising materials mentioning features or use of this software |
| 14 | .\" must display the following acknowledgement: |
| 15 | .\" This product includes software developed by the University of |
| 16 | .\" California, Berkeley and its contributors. |
| 17 | .\" 4. Neither the name of the University nor the names of its contributors |
| 18 | .\" may be used to endorse or promote products derived from this software |
| 19 | .\" without specific prior written permission. |
| 20 | .\" |
| 21 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 30 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | .\" SUCH DAMAGE. |
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| 33 | .\" from: @(#)fabs.3 5.1 (Berkeley) 5/2/91 |
| 34 | .\" $FreeBSD: src/lib/msun/man/fabs.3,v 1.11 2004/07/01 18:20:57 ru Exp $ |
| 35 | .\" |
| 36 | .Dd October 25, 2003 |
| 37 | .Dt FABS 3 |
| 38 | .Os |
| 39 | .Sh NAME |
| 40 | .Nm fabs , |
| 41 | .Nm fabsf , |
| 42 | .Nm fabsl |
| 43 | .Nd floating-point absolute value functions |
| 44 | .Sh LIBRARY |
| 45 | .Lb libm |
| 46 | .Sh SYNOPSIS |
| 47 | .In math.h |
| 48 | .Ft double |
| 49 | .Fn fabs "double x" |
| 50 | .Ft float |
| 51 | .Fn fabsf "float x" |
| 52 | .Ft long double |
| 53 | .Fn fabsl "long double x" |
| 54 | .Sh DESCRIPTION |
| 55 | The |
| 56 | .Fn fabs , |
| 57 | .Fn fabsf |
| 58 | and |
| 59 | .Fn fabsl |
| 60 | functions compute the absolute value of a floating-point number |
| 61 | .Fa x . |
| 62 | .Sh RETURN VALUES |
| 63 | The |
| 64 | .Fn fabs , |
| 65 | .Fn fabsf |
| 66 | and |
| 67 | .Fn fabsl |
| 68 | functions return the absolute value of |
| 69 | .Fa x . |
| 70 | .Sh SEE ALSO |
| 71 | .Xr abs 3 , |
| 72 | .Xr ceil 3 , |
| 73 | .Xr floor 3 , |
| 74 | .Xr ieee 3 , |
| 75 | .Xr math 3 , |
| 76 | .Xr rint 3 |
| 77 | .Sh STANDARDS |
| 78 | The |
| 79 | .Fn fabs |
| 80 | function conforms to |
| 81 | .St -isoC . |
| 82 | The |
| 83 | .Fn fabsf |
| 84 | and |
| 85 | .Fn fabsl |
| 86 | functions conform to |
| 87 | .St -isoC-99 . |