C Tutorial/math.h/ldexp
ldexp
Item Value Header file math.h Declaration float ldexpf(float num, int exp);double ldexp(double num, int exp);long double ldexpl(long double num, int exp); Return returns the value of num * 2^exp.
#include <math.h>
#include <stdio.h>
int main(void)
{
printf("%f", ldexp(1,2));
return 0;
}