| .\" Copyright (c) 2004, 2005 David Schultz <das@FreeBSD.org> |
| .\" All rights reserved. |
| .\" |
| .\" Redistribution and use in source and binary forms, with or without |
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| .\" 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 |
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| .\" $FreeBSD: src/lib/msun/man/trunc.3,v 1.3 2005/06/15 19:04:04 ru Exp $ |
| .\" |
| .Dd April 16, 2005 |
| .Dt TRUNC 3 |
| .Os |
| .Sh NAME |
| .Nm trunc , |
| .Nm truncf , |
| .Nm truncl |
| .Nd nearest integral value with magnitude less than or equal to |x| |
| .Sh LIBRARY |
| .Lb libm |
| .Sh SYNOPSIS |
| .In math.h |
| .Ft double |
| .Fn trunc "double x" |
| .Ft float |
| .Fn truncf "float x" |
| .Ft "long double" |
| .Fn truncl "long double x" |
| .Sh DESCRIPTION |
| The |
| .Fn trunc , |
| .Fn truncf , |
| and |
| .Fn truncl |
| functions return the nearest integral value with magnitude less than |
| or equal to |
| .Pf | Fa x Ns | . |
| They are equivalent to |
| .Fn rint , |
| .Fn rintf , |
| and |
| .Fn rintl , |
| respectively, in the |
| .Dv FE_TOWARDZERO |
| rounding mode. |
| .Sh SEE ALSO |
| .Xr ceil 3 , |
| .Xr fesetround 3 , |
| .Xr floor 3 , |
| .Xr math 3 , |
| .Xr nextafter 3 , |
| .Xr rint 3 , |
| .Xr round 3 |
| .Sh STANDARDS |
| The |
| .Fn trunc , |
| .Fn truncf , |
| and |
| .Fn truncl |
| functions conform to |
| .St -isoC-99 . |
| .Sh HISTORY |
| These routines first appeared in |
| .Fx 5.3 . |
