View Compilation Error

0_0_18827638_10755.cpp: In function 'int main()':
0_0_18827638_10755.cpp:6:15: error: 'str' was not declared in this scope
     while(get(str))
               ^
0_0_18827638_10755.cpp:6:18: error: 'get' was not declared in this scope
     while(get(str))
                  ^