how to TOGGLE Nth bit of variable in a MACRO

Question Posted / kiran kumar yakkala

how to TOGGLE Nth bit of variable in a MACRO..

Answer / kiran kumar yakkala

#define ~toggle(val,n) var^=1<<n

Is This Answer Correct ?

8 Yes

2 No

More C Interview Questions

What is masking?

write an algorithm which can find the largest number among the given list using binary search ............... this was asked in the interview

what is the difference between NULL('\0') and 0?

What is wrong with this initialization?

What is sizeof int in c?

Discuss the function of conditional operator, size of operator and comma operator with examples.

Give a one-line C expression to test whether a number is a power of 2. [No loops allowed - it's a simple test.]

What is c variable?

1. What will be the output of the following programs. a) #include <stdio.h> Main() { Int x=4; While(x==1) { X=x-1; Printf(“%d”,x); --x; } }

Does sprintf put null character?

main() { int x=10,y=15; x=x++; y=++y; printf("%d %d\n",x,y); } output??

How many loops are there in c?

For more C Interview Questions Click Here