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           _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE ||
21           _POSIX_C_SOURCE >= 200112L;
22           or cc -std=c99
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DESCRIPTION

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

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

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

63       These functions first appeared in glibc in version 2.1.
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CONFORMING TO

66       C99, POSIX.1-2001.
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SEE ALSO

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

72       This page is part of release 3.53 of the Linux  man-pages  project.   A
73       description  of  the project, and information about reporting bugs, can
74       be found at http://www.kernel.org/doc/man-pages/.
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78GNU                               2010-09-20                         REMQUO(3)
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