foo.cc: In member function 'int Date::DayInMonth()':
foo.cc:22:7: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   22 |       else return 28; break;
      |       ^~~~
foo.cc:22:23: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   22 |       else return 28; break;
      |                       ^~~~~
foo.cc:36:2: warning: control reaches end of non-void function [-Wreturn-type]
   36 |  }
      |  ^

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