Give a oneline C expression to test whether a number is a
power of 2?

Answer Posted / valli

#include<stdio.h>
main()
{
int n,c=0,i;
for(i=0;i<(sizeof(n)*8);i++)
if(n&(1<<i))
c++;
if(c==1)
printf("%d is powwer of 2",n);
else
printf("%d is not a power of 2",n);
}

Is This Answer Correct ?    0 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How can you relate the function with the structure? Explain with an appropriate example.

2915


how to programme using switch statements and fuctions, a programme that will output two even numbers, two odd numbers and two prime numbers of the users chioce.

2136


why nlogn is the lower limit of any sort algorithm?

2373


Write a routine to implement the polymarker function

4375


What is the match merge ? compare data step match merge with proc sql merge - how many types are there ? data step vs proc sql

2405






Sir... please give some important coding questions asked by product companies..

1793


Write a program to model an exploding firecracker in the xy plane using a particle system

3686


Develop a routine to reflect an object about an arbitrarily selected plane

2992


Hi, i have a project that the teacher want a pyramid of numbers in C# or java...when we click a button...the pyramid should be generated in a listbox/or JtextArea...and the pyramid should have the folowing form: 1 232 34543 4567654 567898765 67890109876 7890123210987 890123454321098 90123456765432109 0123456789876543210 Plz help with codes...didn't find anything on the net.

2681


write a simple calculator c program to perform addition, subtraction, mul and div.

3143


write a c program to input initial & final time in the format hh:mm and find the time intervel between them? Ex inputs are initial 06:30 final 00:05 and 23:22 final 22.30

2219


write a program for area of circumference of shapes

2028


write a function to give demostrate the functionality of 3d in 1d. function prototye: change(int value,int indexX,int indexY,int indexZ, int [] 1dArray); value=what is the date; indexX=x-asix indexY=y-axis indexZ=z-axis and 1dArray=in which and where the value is stored??

4140


Cluster head selection in Wireless Sensor Network using C programming language.

3107


What is the difference between proc means and proc tabulate ? explain with a simple example when you have to use means or tabulate?

3707