diff options
Diffstat (limited to 'lib/clang/include/llvm/ADT/iterator.h')
| -rw-r--r-- | lib/clang/include/llvm/ADT/iterator.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/lib/clang/include/llvm/ADT/iterator.h b/lib/clang/include/llvm/ADT/iterator.h new file mode 100644 index 0000000..b406266 --- /dev/null +++ b/lib/clang/include/llvm/ADT/iterator.h @@ -0,0 +1,78 @@ +/* include/llvm/ADT/iterator.h. Generated from iterator.h.in by configure. */ +//==-- llvm/ADT/iterator.h - Portable wrapper around <iterator> --*- C++ -*-==// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// 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 +// 2. forward_iterator +// +// The #if directives' expressions are filled in by Autoconf. +// +// $FreeBSD$ +//===----------------------------------------------------------------------===// + +#ifndef LLVM_ADT_ITERATOR_H +#define LLVM_ADT_ITERATOR_H + +#include <iterator> + +#define HAVE_BI_ITERATOR 0 +#define HAVE_STD_ITERATOR 1 +#define HAVE_FWD_ITERATOR 0 + +#ifdef _MSC_VER +# define HAVE_BI_ITERATOR 0 +# define HAVE_STD_ITERATOR 1 +# define HAVE_FWD_ITERATOR 0 +#endif + +#if !HAVE_BI_ITERATOR +# if HAVE_STD_ITERATOR +/// If the bidirectional iterator is not defined, we attempt to define it in +/// terms of the C++ standard iterator. Otherwise, we import it with a "using" +/// statement. +/// +template<class Ty, class PtrDiffTy> +struct bidirectional_iterator + : public std::iterator<std::bidirectional_iterator_tag, Ty, PtrDiffTy> { +}; +# else +# error "Need to have standard iterator to define bidirectional iterator!" +# endif +#else +using std::bidirectional_iterator; +#endif + +#if !HAVE_FWD_ITERATOR +# if HAVE_STD_ITERATOR +/// If the forward iterator is not defined, attempt to define it in terms of +/// the C++ standard iterator. Otherwise, we import it with a "using" statement. +/// +template<class Ty, class PtrDiffTy> +struct forward_iterator + : public std::iterator<std::forward_iterator_tag, Ty, PtrDiffTy> { +}; +# else +# error "Need to have standard iterator to define forward iterator!" +# endif +#else +using std::forward_iterator; +#endif + +#endif // LLVM_ADT_ITERATOR_H |
