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frexp
Usage
#include <math.h>
double frexp(double value,int *eptr);
Description
Splits the double value into x and e such that (value == x * (2e) and
x > .5 and x <= 1.0). e is stored in *eptr and x is returned. If value
is 0.0, then both x and e are 0.
Example
#include <stdio.h>
#include <math.h>
main()
{
double d1, d2;
int i;
d2 = 15.3;
d1 = frexp(d2, &i);
printf("d1 = %f si = %d\n",d1,i);
}
Return Value
frexp returns the mantissa x.