/in/foo.c: In function 'main':
/in/foo.c:12:3: warning: statement with no effect [-Wunused-value]
   result
   ^~~~~~
/in/foo.c:13:2: error: expected ';' before 'if'
  if(result0==result)
  ^~
/in/foo.c:9:9: warning: unused variable 'result0' [-Wunused-variable]
  double result0=a0/b0;
         ^~~~~~~