#include<stdio.h> 
int main(){
    int i = 10; 
    int j = 10;

    j = ++(i ^ i);
    printf("%d %d\n", j, i);

    j = ++(i + i);
    printf("%d %d\n", j, i);

    return 1;
}

In function 'main':
Line 6: error: invalid lvalue in increment
Line 9: error: invalid lvalue in increment