View Compilation Error

0_0_30400144_25547.cpp: In function 'int main()':
0_0_30400144_25547.cpp:8:22: error: expected ')' before ';' token
         while(int i=0; (1LL<<i) <= max(a, b); i++){
                      ^
0_0_30400144_25547.cpp:8:30: error: 'i' was not declared in this scope
         while(int i=0; (1LL<<i) <= max(a, b); i++){
                              ^