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author | Oscar Fuentes <ofv@wanadoo.es> | 2008-09-22 01:08:49 +0000 |
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committer | Oscar Fuentes <ofv@wanadoo.es> | 2008-09-22 01:08:49 +0000 |
commit | 3d01fc7de86c75926e4e5ac7cc49f0116018893d (patch) | |
tree | 2ea49e2f904dd479a4b941454b776dee762921dd /include/llvm/ADT/iterator.cmake | |
parent | cd4c73aa708d9ecf5d7e0a711dbf359d22b6dd3a (diff) | |
download | llvm-3d01fc7de86c75926e4e5ac7cc49f0116018893d.tar.gz llvm-3d01fc7de86c75926e4e5ac7cc49f0116018893d.tar.bz2 llvm-3d01fc7de86c75926e4e5ac7cc49f0116018893d.tar.xz |
Initial support for the CMake build system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/ADT/iterator.cmake')
-rw-r--r-- | include/llvm/ADT/iterator.cmake | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/llvm/ADT/iterator.cmake b/include/llvm/ADT/iterator.cmake new file mode 100644 index 0000000000..55df8ce264 --- /dev/null +++ b/include/llvm/ADT/iterator.cmake @@ -0,0 +1,79 @@ +//===-- llvm/ADT/iterator - Portable wrapper around <iterator> --*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the LLVM research group and 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. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_ADT_ITERATOR +#define LLVM_ADT_ITERATOR + +#include <iterator> + +#undef HAVE_BI_ITERATOR +#undef HAVE_STD_ITERATOR +#undef HAVE_FWD_ITERATOR + +// defined by Kevin +#define HAVE_STD_ITERATOR 1 + +#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 |