foo.cc:6:1: error: expected ';' before 'int'
 int  main
 ^~~
foo.cc:6:6: error: cannot declare '::main' to be a global variable
 int  main
      ^~~~
foo.cc:8:3: error: 'cont' was not declared in this scope
   cont<<"hello,world>>!";
   ^~~~
foo.cc:8:3: note: suggested alternative: 'uint'
   cont<<"hello,world>>!";
   ^~~~
   uint
foo.cc:8:25: error: expected '}' before ';' token
   cont<<"hello,world>>!";
                         ^
foo.cc:10:4: error: expected unqualified-id before 'return'
    return  o;
    ^~~~~~
foo.cc:11:1: error: expected declaration before '}' token
 }
 ^

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