/in/foo.cc: In function 'void Match(char*)':
/in/foo.cc:48:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    if (isEmpty(&stack))
    ^~
/in/foo.cc:51:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
     return;
     ^~~~~~
/in/foo.cc: At global scope:
/in/foo.cc:57:2: error: expected unqualified-id before 'if'
  if (isEmpty(&stack))
  ^~
/in/foo.cc:60:4: error: expected unqualified-id before 'else'
  } else {
    ^~~~