fmod.3 (3a8617a83f16ffc9db4f96e1f0f21af94078e6b1) fmod.3 (7a15a32a17f4c2cbeb6f842c4c6b1cf93e4639e7)
1.\" Copyright (c) 1991 The Regents of the University of California.
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

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25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" from: @(#)fmod.3 5.1 (Berkeley) 5/2/91
1.\" Copyright (c) 1991 The Regents of the University of California.
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

--- 16 unchanged lines hidden (view full) ---

25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" from: @(#)fmod.3 5.1 (Berkeley) 5/2/91
33.\" $Id: fmod.3,v 1.3 1993/08/14 13:42:46 mycroft Exp $
33.\" $Id: fmod.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
34.\"
35.Dd May 2, 1991
36.Dt FMOD 3
37.Os
38.Sh NAME
34.\"
35.Dd May 2, 1991
36.Dt FMOD 3
37.Os
38.Sh NAME
39.Nm fmod
40.Nd floating-point remainder function
39.Nm fmod ,
40.Nm fmodf
41.Nd floating-point remainder functions
41.Sh SYNOPSIS
42.Fd #include <math.h>
43.Ft double
44.Fn fmod "double x" "double y"
42.Sh SYNOPSIS
43.Fd #include <math.h>
44.Ft double
45.Fn fmod "double x" "double y"
46.Ft float
47.Fn fmodf "float x" "float y"
45.Sh DESCRIPTION
46The
47.Fn fmod
48.Sh DESCRIPTION
49The
50.Fn fmod
48function computes the floating-point remainder of
51and the
52.Fn fmodf
53functions compute the floating-point remainder of
49.Fa x Ns / Fa y .
50.Sh RETURN VALUES
51The
52.Fn fmod
54.Fa x Ns / Fa y .
55.Sh RETURN VALUES
56The
57.Fn fmod
53function returns the value
58and the
59.Fn fmodf
60functions return the value
54.Sm off
55.Fa x - Em i * Fa y ,
56.Sm on
57for some integer
58.Em i
59such that, if
60.Fa y
61is non-zero, the result has the same sign as
62.Fa x
63and magnitude less than the magnitude of
64.Fa y .
65If
66.Fa y
67is zero, whether a domain error occurs or the
68.Fn fmod
61.Sm off
62.Fa x - Em i * Fa y ,
63.Sm on
64for some integer
65.Em i
66such that, if
67.Fa y
68is non-zero, the result has the same sign as
69.Fa x
70and magnitude less than the magnitude of
71.Fa y .
72If
73.Fa y
74is zero, whether a domain error occurs or the
75.Fn fmod
76and the
77.Fn fmodf
69function returns zero is implementation-defined.
70.Sh SEE ALSO
71.Xr math 3
72.Sh STANDARDS
73The
74.Fn fmod
75function conforms to
76.St -ansiC .
78function returns zero is implementation-defined.
79.Sh SEE ALSO
80.Xr math 3
81.Sh STANDARDS
82The
83.Fn fmod
84function conforms to
85.St -ansiC .