src/work/alpar/invalid.h
author alpar
Wed, 10 Mar 2004 17:49:55 +0000
changeset 165 9b078bc3ce13
parent 162 abfae454c3b5
child 169 940b13aba5ff
permissions -rw-r--r--
Some mod in the doc
     1 // -*- mode:C++ -*-
     2 
     3 #ifndef HUGO_INVALID_H
     4 #define HUGO_INVALID_H
     5 
     6 namespace hugo {
     7 
     8   /// Dummy type to make it easier to make invalid iterators.
     9   
    10   /// See \ref INVALID, how to use it.
    11   
    12   struct Invalid {};
    13   
    14   /// Invalid iterators.
    15   
    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.
    18   
    19   //extern Invalid INVALID;
    20 
    21   const Invalid &INVALID = *(Invalid *)0;
    22 
    23 };
    24 
    25 #endif
    26