REMQUO(3) | Library Functions Manual | REMQUO(3) |
remquo
—
floating-point remainder and quotient function
#include
<math.h>
double
remquo
(double
x, double y,
int *quo);
long double
remquol
(long
double x, long double
y, int *quo);
float
remquof
(float
x, float y,
int *quo);
The
remquo
()
functions compute the value r such that r = x - n*y, where n is the integer
nearest the exact value of x/y.
If there are two integers closest to x/y, n shall
be the even one. If r is zero, it is given the same sign as x. This is the
same value that is returned by the
remainder
()
function. remquo
() also calculates the lower seven
bits of the integral quotient x/y, and gives that value the same sign as
x/y. It stores this signed value in the object pointed to by quo.
remquo
(x, y, quo)
returns a NaN and raises the "invalid" floating-point exception if
x is infinite or y is 0.
If you need to apply the remquo
() function
to SIMD vectors or arrays, using the following functions provided by the
Accelerate.framework may give significantly better performance:
#include
<Accelerate/Accelerate.h>
vFloat
vremquo
(vFloat
x, vFloat y, vUInt32
*q);
The remquo
() functions conform to ISO/IEC
9899:2011.
December 11, 2006 | macOS 14.6 |