gcc/libstdc++-v3/include/ext/iterator - Issue 3050029: [gcc] GCC 4.5.0=>4.5.1

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Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git

Patch Set: Created 10 years, 4 months ago

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1 // HP/SGI iterator extensions -- C++ --

2

3 // Copyright (C) 2001, 2002, 2004, 2005, 2009 Free Software Foundation, Inc.

4 //

5 // This file is part of the GNU ISO C++ Library. This library is free

6 // software; you can redistribute it and/or modify it under the

7 // terms of the GNU General Public License as published by the

8 // Free Software Foundation; either version 3, or (at your option)

9 // any later version.

10

11 // This library is distributed in the hope that it will be useful,

12 // but WITHOUT ANY WARRANTY; without even the implied warranty of

13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

14 // GNU General Public License for more details.

15

16 // Under Section 7 of GPL version 3, you are granted additional

17 // permissions described in the GCC Runtime Library Exception, version

18 // 3.1, as published by the Free Software Foundation.

19

20 // You should have received a copy of the GNU General Public License and

21 // a copy of the GCC Runtime Library Exception along with this program;

22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see

23 // <http://www.gnu.org/licenses/>.

24

25 /*

26 *

27 * Copyright (c) 1994

28 * Hewlett-Packard Company

29 *

30 * Permission to use, copy, modify, distribute and sell this software

31 * and its documentation for any purpose is hereby granted without fee,

32 * provided that the above copyright notice appear in all copies and

33 * that both that copyright notice and this permission notice appear

34 * in supporting documentation. Hewlett-Packard Company makes no

35 * representations about the suitability of this software for any

36 * purpose. It is provided "as is" without express or implied warranty.

37 *

38 *

39 * Copyright (c) 1996-1998

40 * Silicon Graphics Computer Systems, Inc.

41 *

42 * Permission to use, copy, modify, distribute and sell this software

43 * and its documentation for any purpose is hereby granted without fee,

44 * provided that the above copyright notice appear in all copies and

45 * that both that copyright notice and this permission notice appear

46 * in supporting documentation. Silicon Graphics makes no

47 * representations about the suitability of this software for any

48 * purpose. It is provided "as is" without express or implied warranty.

49 */

50

51 /** @file ext/iterator

52 * This file is a GNU extension to the Standard C++ Library (possibly

53 * containing extensions from the HP/SGI STL subset).

54 */

55

56 #ifndef _EXT_ITERATOR

57 #define _EXT_ITERATOR 1

58

59 #pragma GCC system_header

60

61 #include <bits/concept_check.h>

62 #include <iterator>

63

64 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)

65

66 // There are two signatures for distance. In addition to the one

67 // taking two iterators and returning a result, there is another

68 // taking two iterators and a reference-to-result variable, and

69 // returning nothing. The latter seems to be an SGI extension.

70 // -- pedwards

71 template<typename _InputIterator, typename _Distance>

72 inline void

73 __distance(_InputIterator __first, _InputIterator __last,

74 _Distance& __n, std::input_iterator_tag)

75 {

76 // concept requirements

77 __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)

78 while (__first != __last)

79 {

80 ++__first;

81 ++__n;

82 }

83 }

84

85 template<typename _RandomAccessIterator, typename _Distance>

86 inline void

87 __distance(_RandomAccessIterator __first, _RandomAccessIterator __last,

88 _Distance& __n, std::random_access_iterator_tag)

89 {

90 // concept requirements

91 __glibcxx_function_requires(_RandomAccessIteratorConcept<

92 _RandomAccessIterator>)

93 __n += __last - __first;

94 }

95

96 /**

97 * This is an SGI extension.

98 * @ingroup SGIextensions

99 * @doctodo

100 */

101 template<typename _InputIterator, typename _Distance>

102 inline void

103 distance(_InputIterator __first, _InputIterator __last,

104 _Distance& __n)

105 {

106 // concept requirements -- taken care of in __distance

107 __distance(__first, __last, __n, std::__iterator_category(__first));

108 }

109

110 _GLIBCXX_END_NAMESPACE

111

112 #endif

113

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