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Compute the remainder of two numbers
#include <math.h> double drem ( double x, double y ); float dremf ( float x, float y );
libm
Use the -l m option to qcc to link against this library.
The drem() and dremf() functions compute the remainder r = x - n * y, when y is nonzero. The value n is the integral value nearest the exact value x/y.
When |n - x/y| = ^{1}/_{2}, the value n is chosen to be even. But remainder(x, 0) and remainder(infinity,0) are invalid operations that produce a NAN.
The behavior of drem() is independent of the rounding mode.
The remainder, r = x - n * y, when y is nonzero.
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |