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| -rw-r--r-- | include/Support/iterator | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/Support/iterator b/include/Support/iterator new file mode 100644 index 0000000000..095d6047ae --- /dev/null +++ b/include/Support/iterator @@ -0,0 +1,36 @@ +//===-- Support/iterator - "Portable" wrapper around <iterator> -*- C++ -*-===// +// +// This file provides a wrapper around the mysterious <iterator> header file. +// In GCC 2.95.3, the file defines a bidirectional_iterator class (and other +// friends), instead of the standard iterator class. In GCC 3.1, the +// bidirectional_iterator class got moved out and the new, standards compliant, +// iterator<> class was added. Because there is nothing that we can do to get +// correct behavior on both compilers, we have this header with #ifdef's. Gross +// huh? +// +// By #includ'ing this file, you get the contents of <iterator> plus the +// following classes in the global namespace: +// +// 1. bidirectional_iterator +// +//===----------------------------------------------------------------------===// + +#ifndef SUPPORT_ITERATOR_H +#define SUPPORT_ITERATOR_H + +#include <iterator> + +#if __GNUC__ == 3 + +// Define stupid wrappers around std::iterator... +template<class Ty, class PtrDiffTy> +struct bidirectional_iterator + : public std::iterator<std::bidirectional_iterator_tag, Ty, PtrDiffTy> { +}; + +#else +// Just use bidirectional_iterator directly. +using std::bidirectional_iterator; +#endif + +#endif |