/in/foo.cc: In function 'int cal(int, int)':
/in/foo.cc:5:5: error: expected '(' before '{' token
     {
     ^
/in/foo.cc:6:9: error: 'mov' was not declared in this scope
         mov eax,a;
         ^~~
/in/foo.cc:7:13: error: expected ';' before 'ebx'
         mov ebx,b;
             ^~~
/in/foo.cc:8:9: error: 'add' was not declared in this scope
         add eax,ebx;
         ^~~
/in/foo.cc:10:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^