remquo(3M) Mathematical Library Functions remquo(3M)NAME
remquo, remquof, remquol - remainder functions
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#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);
DESCRIPTION
The remquo(), remquof(), and remquol() functions compute the same
remainder as the remainder(), remainderf(), and remainderl() functions,
respectively. See remainder(3M). In the object pointed to by quo, they
store a value whose sign is the sign of x/y and whose magnitude is con‐
gruent modulo 2 **n to the magnitude of the integral quotient of x/y,
where n is an integer greater than or equal to 3.
RETURN VALUES
These functions return x REM y.
If x or y is NaN, a NaN is returned.
If x is ±Inf or y is 0 and the other argument is non-NaN, a domain
error occurs and a NaN is returned.
ERRORS
These functions will fail if:
Domain Error The x argument is Inf or the y argument is 0 and the
other argument is non-NaN.
If the integer expression (math_errhandling &
MATH_ERREXCEPT) is non-zero, then the invalid floating-
point exception is raised.
USAGE
An application wanting to check for exceptions should call feclearex‐
cept(FE_ALL_EXCEPT) before calling these functions. On return, if
fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is
non-zero, an exception has been raised. An application should either
examine the return value or check the floating point exception flags to
detect exceptions.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Standard │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOfeclearexcept(3M), fetestexcept(3M), math.h(3HEAD), remainder(3M),
attributes(5), standards(5)SunOS 5.10 12 Jul 2006 remquo(3M)
