drem - floating-point remainder function


SYNOPSIS

       #include <math.h>

       double drem(double x, double y);


DESCRIPTION

       The  drem()  function computes the remainder of dividing x
       by y.  The return value is x - n * y, where n is the  quo­
       tient  of  x  / y, rounded to the nearest integer.  If the
       quotient is 1/2, it is rounded to the even number.


RETURN VALUE

       The drem() function returns the  remainder,  unless  y  is
       zero, when the function fails and errno is set.


ERRORS

       EDOM   The denominator y is zero.


CONFORMING TO

       BSD 4.3


SEE ALSO

       fmod(3)