1 //===-- Support/iterator - "Portable" wrapper around <iterator> -*- C++ -*-===//
3 // This file provides a wrapper around the mysterious <iterator> header file.
4 // In GCC 2.95.3, the file defines a bidirectional_iterator class (and other
5 // friends), instead of the standard iterator class. In GCC 3.1, the
6 // bidirectional_iterator class got moved out and the new, standards compliant,
7 // iterator<> class was added. Because there is nothing that we can do to get
8 // correct behavior on both compilers, we have this header with #ifdef's. Gross
11 // By #includ'ing this file, you get the contents of <iterator> plus the
12 // following classes in the global namespace:
14 // 1. bidirectional_iterator
15 // 2. forward_iterator
17 //===----------------------------------------------------------------------===//
19 #ifndef SUPPORT_ITERATOR_H
20 #define SUPPORT_ITERATOR_H
26 // Define stupid wrappers around std::iterator...
27 template<class Ty, class PtrDiffTy>
28 struct bidirectional_iterator
29 : public std::iterator<std::bidirectional_iterator_tag, Ty, PtrDiffTy> {
32 template<class Ty, class PtrDiffTy>
33 struct forward_iterator
34 : public std::iterator<std::forward_iterator_tag, Ty, PtrDiffTy> {
38 // Just use bidirectional_iterator directly.
39 using std::bidirectional_iterator;
40 using std::forward_iterator;