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.
<source lang="cpp">#include <math.h>
#include <stdio.h> int main(void) { printf("%f", ldexp(1,2)); return 0; }</source>