# remquol(3)

#### NAME

```   remquo, remquof, remquol - remainder and part of quotient

```

#### SYNOPSIS

```   #include <math.h>

double remquo(double x, double y, int *quo);
float remquof(float x, float y, int *quo);
long double remquol(long double x, long double y, int *quo);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

remquo(), remquof(), remquol():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L

```

#### DESCRIPTION

```   These  functions  compute  the  remainder and part of the quotient upon
division of x by y.  A few bits of the quotient are stored via the  quo
pointer.  The remainder is returned as the function result.

The  value  of  the  remainder  is  the  same  as  that computed by the
remainder(3) function.

The value stored via the quo pointer has the sign of x / y  and  agrees
with the quotient in at least the low order 3 bits.

For  example,  remquo(29.0, 3.0)  returns -1.0 and might store 2.  Note
that the actual quotient might not fit in an integer.

```

#### RETURNVALUE

```   On success, these functions return the  same  value  as  the  analogous
functions described in remainder(3).

If x or y is a NaN, a NaN is returned.

If  x  is an infinity, and y is not a NaN, a domain error occurs, and a
NaN is returned.

If y is zero, and x is not a NaN, a domain error occurs, and a  NaN  is
returned.

```

#### ERRORS

```   See  math_error(7) for information on how to determine whether an error
has occurred when calling these functions.

The following errors can occur:

Domain error: x is an infinity or y is 0, and the other argument is not
a NaN
An invalid floating-point exception (FE_INVALID) is raised.

These functions do not set errno.

```

#### VERSIONS

```   These functions first appeared in glibc in version 2.1.

```

#### ATTRIBUTES

```   For   an   explanation   of   the  terms  used  in  this  section,  see
attributes(7).

┌───────────────────────────────┬───────────────┬─────────┐
│Interface                      │ Attribute     │ Value   │
├───────────────────────────────┼───────────────┼─────────┤
│remquo(), remquof(), remquol() │ Thread safety │ MT-Safe │
└───────────────────────────────┴───────────────┴─────────┘
```

#### CONFORMINGTO

```   C99, POSIX.1-2001, POSIX.1-2008.

```

#### SEEALSO

```   fmod(3), logb(3), remainder(3)

```

#### COLOPHON

```   This page is part of release 4.09 of the Linux  man-pages  project.   A
description  of  the project, information about reporting bugs, and the
latest    version    of    this    page,    can     be     found     at
https://www.kernel.org/doc/man-pages/.
```

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