/in/foo.cc: In function 'bool is_prime(int)':
/in/foo.cc:19:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
             if (x%i==0)
             ^~
/in/foo.cc:21:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
   if (j==0)
   ^~
/in/foo.cc:29:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^