foo.cpp: In function 'int fib67(int)':
foo.cpp:10:9: error: 'tot' was not declared in this scope
         tot=(a+b)%7654321;
         ^
foo.cpp:14:12: error: 'tot' was not declared in this scope
     return tot;
            ^
foo.cpp:6:17: warning: unused variable 'ret' [-Wunused-variable]
     int a=0,b=1,ret=0;
                 ^
foo.cpp:15:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^