4 ms·

The name of a variable, global or otherwise, is not a constant expression, so there are contexts in which it can't be used.

• xiaq 11y ago
  Enums can be used for that purpose.
  • _kst_ 11y ago
    True, but only for type int. enum { MAX = 1000 };
    • J_Darnley 11y ago
      Why is this preferable over a preprocessor define? Is it because it can't be redefined easily? A max or count is certainly useful when there are other enum values but I don't see the huge advantage it has here.
      • _kst_ 11y ago
        Enumeration constants have scope.