How do you Nibble swap using bitwise operators?

a := a XOR b b := a XOR b a := a XOR b it works, but never use it in real programs

//lets assume a = 10; b = 20; a = a^b; b = a^b; a = a^b;

not 100% sure if this is what you are asking for but here it goes. you have a number 11110000 (binary) and you want 00001111 (binary)? you want to use the xor operator ^ value = 0xf0; //11110000...

include<stdio.h> int main() { int n,n2; printf("enter the no. < 15 "); // here i am considering the case of 4 bits. (1111) binary = (15) decimal scanf("%d",&n); n2=n^10; ...