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.\" Copyright 2001 Andries Brouwer <aeb@cwi.nl>.
.\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk
.\" <mtk.manpages@gmail.com>
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 2001, 2005 Yuichi SATO
.\" all rights reserved.
.\" Translated Sun Jul 8 11:59:22 JST 2001
.\" by Yuichi SATO <ysato@h4.dion.ne.jp>
.\" Updated & Modified Sat Jan 15 22:39:05 JST 2005
.\" by Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated 2008-09-18, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.TH LRINT 3 2008-08-11 "" "Linux Programmer's Manual"
.SH ̾
lrint, lrintf, lrintl, llrint, llrintf, llrintl \- Ǥᤤͤ˴ݤ
.SH
.nf
.B #include <math.h>
.sp
.BI "long int lrint(double " x );
.br
.BI "long int lrintf(float " x );
.br
.BI "long int lrintl(long double " x );
.sp
.BI "long long int llrint(double " x );
.br
.BI "long long int llrintf(float " x );
.br
.BI "long long int llrintl(long double " x );
.fi
.sp
\fI\-lm\fP ǥ롣
.sp
.in -4n
glibc εǽޥ
.RB ( feature_test_macros (7)
):
.in
.sp
.ad l
All functions shown above:
_XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE; or
.I cc\ -std=c99
.ad b
.SH
δؿϡߤδݤ˴ŤǤᤤ˰ݤ
(ߤδݤˤĤƤ
.BR fesetround (3)
)
.BR rint (3)
Ȱ㤤δؿ֤ͤηϰηȰۤʤդ뤳ȡ
.SH ֤
δؿϴݤ֤ͤ
.I x
NaN ̵ξ硢⤷ϴݤͤ礭
.I long
.RB ( ll*
ؿξˤ
.IR "long long" )
˳ǼǤʤ硢
ΰ襨顼 (domain error) ȯ֤ͤȤʤ롣
.\" The return value is -(LONG_MAX - 1) or -(LLONG_MAX -1)
.SH 顼
δؿƤӽФݤ˥顼ȯȽˡˤĤƤξ
.BR math_error (7)
ȤΤȡ
.PP
ʲΥ顼ȯǽ롣
.TP
ΰ襨顼: \fIx\fP NaN ̵硢⤷ϴݤͤ礭
.\" .I errno
.\" is set to
.\" .BR EDOM .
(invalid) ư㳰
.RB ( FE_INVALID )
夬롣
.PP
δؿ
.I errno
ꤷʤ
.\" FIXME . Is it intentional that these functions do not set errno?
.\" Bug raised: http://sources.redhat.com/bugzilla/show_bug.cgi?id=6798
.SH С
δؿ glibc С 2.1 ǽо줷
.SH
C99, POSIX.1-2001.
.SH Ϣ
.BR ceil (3),
.BR floor (3),
.BR lround (3),
.BR nearbyint (3),
.BR rint (3),
.BR round (3)
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