Answer by udhaya for How to check if a number is a power of 2

Find if the given number is a power of 2.

#include <math.h>int main(void){    int n,logval,powval;    printf("Enter a number to find whether it is s power of 2\n");    scanf("%d",&n);    logval=log(n)/log(2);    powval=pow(2,logval);    if(powval==n)        printf("The number is a power of 2");    else        printf("The number is not a power of 2");    getch();    return 0;}