modf - extract signed integral and fractional values from floatingpoint
number
#include <math.h>
double modf(double x, double *iptr);
The modf() function breaks the argument x into an integral part and a
fractional part, each of which has the same sign as x. The integral
part is stored in iptr.
The modf() function returns the fractional part of x.
SVID 3, POSIX, BSD 4.3, ISO 9899
frexp(3), ldexp(3)
1993-06-06 MODF(3)
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