/in/foo.cc: In function 'int main()':
/in/foo.cc:26:18: warning: 'times' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return times*hour;
                  ^~~~
/in/foo.cc:18:12: note: 'times' was declared here
     double times;
            ^~~~~
/in/foo.cc: In function 'double calculate_salary(int, int)':
/in/foo.cc:26:18: warning: 'times' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return times*hour;
                  ^~~~