1REMQUO(3) Linux Programmer's Manual REMQUO(3)
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6 remquo, remquof, remquol - remainder and part of quotient
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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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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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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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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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61 These functions first appeared in glibc in version 2.1.
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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 └───────────────────────────────┴───────────────┴─────────┘
73 C99, POSIX.1-2001, POSIX.1-2008.
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76 fmod(3), logb(3), remainder(3)
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79 This page is part of release 5.10 of the Linux man-pages project. A
80 description of the project, information about reporting bugs, and the
81 latest version of this page, can be found at
82 https://www.kernel.org/doc/man-pages/.
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86GNU 2017-09-15 REMQUO(3)