remquo, remquof, remquol - remainder and part of quotient

Math library (`libm`

, `-lm`

)

```
#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)):

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.

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.

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`

.

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

Interface | Attribute | Value |

Thread safety | MT-Safe |

C11, POSIX.1-2008.

glibc 2.1. C99, POSIX.1-2001.