| author | alpar |
| Sun, 21 Mar 2004 14:58:48 +0000 | |
| changeset 223 | 02948c4c68e1 |
| parent 169 | 940b13aba5ff |
| child 242 | b255f25ad394 |
| permissions | -rw-r--r-- |
1 // -*- mode:C++ -*-
3 #ifndef HUGO_INVALID_H
4 #define HUGO_INVALID_H
6 namespace hugo {
8 /// Dummy type to make it easier to make invalid iterators.
10 /// See \ref INVALID, how to use it.
12 struct Invalid {};
14 /// Invalid iterators.
16 /// \ref Invalid is a global type that converts to each iterator
17 /// in such a way that the value of the target iterator will be invalid.
19 // It is also used to convert the \c INVALID constant to the
20 // node iterator that makes is possible to write
22 //extern Invalid INVALID;
24 //const Invalid &INVALID = *(Invalid *)0;
25 const Invalid INVALID = Invalid();
27 };
29 #endif