1REMQUO(3)                  Linux Programmer's Manual                 REMQUO(3)
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NAME

6       remquo, remquof, remquol - remainder and part of quotient
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SYNOPSIS

9       #include <math.h>
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11       double remquo(double x, double y, int *quo);
12       float remquof(float x, float y, int *quo);
13       long double remquol(long double x, long double y, int *quo);
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15       Link with -lm.
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17   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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19       remquo(), remquof(), remquol():
20           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
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DESCRIPTION

23       These functions compute the remainder and part of the quotient upon di‐
24       vision of x by y.  A few bits of the quotient are stored  via  the  quo
25       pointer.  The remainder is returned as the function result.
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27       The  value of the remainder is the same as that computed by the remain‐
28       der(3) function.
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30       The value stored via the quo pointer has the sign of x / y  and  agrees
31       with the quotient in at least the low order 3 bits.
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33       For  example,  remquo(29.0, 3.0)  returns -1.0 and might store 2.  Note
34       that the actual quotient might not fit in an integer.
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RETURN VALUE

37       On success, these functions return the  same  value  as  the  analogous
38       functions described in remainder(3).
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40       If x or y is a NaN, a NaN is returned.
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42       If  x  is an infinity, and y is not a NaN, a domain error occurs, and a
43       NaN is returned.
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45       If y is zero, and x is not a NaN, a domain error occurs, and a  NaN  is
46       returned.
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ERRORS

49       See  math_error(7) for information on how to determine whether an error
50       has occurred when calling these functions.
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52       The following errors can occur:
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54       Domain error: x is an infinity or y is 0, and the other argument is not
55       a NaN
56              An invalid floating-point exception (FE_INVALID) is raised.
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58       These functions do not set errno.
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VERSIONS

61       These functions first appeared in glibc in version 2.1.
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ATTRIBUTES

64       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
65       tributes(7).
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67       ┌────────────────────────────────────────────┬───────────────┬─────────┐
68       │Interface                                   │ Attribute     │ Value   │
69       ├────────────────────────────────────────────┼───────────────┼─────────┤
70       │remquo(), remquof(), remquol()              │ Thread safety │ MT-Safe │
71       └────────────────────────────────────────────┴───────────────┴─────────┘
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CONFORMING TO

74       C99, POSIX.1-2001, POSIX.1-2008.
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SEE ALSO

77       fmod(3), logb(3), remainder(3)
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COLOPHON

80       This page is part of release 5.13 of the Linux  man-pages  project.   A
81       description  of  the project, information about reporting bugs, and the
82       latest    version    of    this    page,    can     be     found     at
83       https://www.kernel.org/doc/man-pages/.
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87GNU                               2021-03-22                         REMQUO(3)
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