mirror of https://github.com/mkerrisk/man-pages
54 lines
1.4 KiB
Groff
54 lines
1.4 KiB
Groff
.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
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.\" Distributed under GPL
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.\" based on glibc infopages
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.\" polished, aeb
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.TH REMQUO 3 2002-08-10 "gnu" "Linux Programmer's Manual"
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.SH NAME
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remquo, remquof, remquol \- remainder and part of quotient
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.SH SYNOPSIS
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.nf
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#define _ISOC99_SOURCE
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.br
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.B #include <math.h>
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.sp
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.BI "double remquo(double " x ", double " y ", int *" quo );
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.br
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.BI "float remquof(float " x ", float " y ", int *" quo );
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.br
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.BI "long double remquol(long double " x ", long double " y ", int *" quo );
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.fi
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.SH DESCRIPTION
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These functions compute the remainder and part of the quotient
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upon division of
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.I x
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by
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.IR y .
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A few bits of the quotient are stored via the
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.I quo
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pointer. The remainder is returned as function value.
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The value of the remainder is the same as that computed by the
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.BR remainder (3)
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function.
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The value stored via the
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.I quo
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pointer has the sign of
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.IR x / y
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and agrees with the quotient in at least the low order 3 bits.
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For example, remquo(29.0,3.0) returns \-1.0 and might store 2.
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Note that the actual quotient might not fit in an integer.
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.\" A possible application of this function might be the computation
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.\" of sin(x). Compute remquo(x, pi/2, &quo) or so.
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.\"
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.\" glibc, UnixWare: return 3 bits
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.\" MacOS 10: return 7 bits
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.SH "CONFORMING TO"
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C99
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.SH "SEE ALSO"
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.BR fmod (3),
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.BR logb (3),
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.BR remainder (3),
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.BR feature_test_macros (7)
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