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updated tag mechanism for iterators using Dave's idea

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[SVN r612]
This commit is contained in:
Jeremy Siek
2002-10-24 15:45:01 +00:00
parent c4f60fd24b
commit 560c48fe7a
5 changed files with 41 additions and 29 deletions
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include/boost/iterator/iterator_concepts.hpp
+14 -10
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@@ -26,7 +26,8 @@ namespace boost_concepts {
public:
typedef typename std::iterator_traits<Iterator>::value_type value_type;
typedef typename std::iterator_traits<Iterator>::reference reference;
typedef typename boost::return_category<Iterator>::type return_category;
typedef typename std::iterator_traits<Iterator>::iterator_category iterator_category;
typedef typename iterator_category::returns return_category;
void constraints() {
boost::function_requires< boost::SGIAssignableConcept<Iterator> >();
@@ -47,7 +48,8 @@ namespace boost_concepts {
template <typename Iterator, typename ValueType>
class WritableIteratorConcept {
public:
typedef typename boost::return_category<Iterator>::type return_category;
typedef typename std::iterator_traits<Iterator>::iterator_category iterator_category;
typedef typename iterator_category::returns return_category;
void constraints() {
boost::function_requires< boost::SGIAssignableConcept<Iterator> >();
@@ -69,7 +71,8 @@ namespace boost_concepts {
public:
typedef typename std::iterator_traits<Iterator>::value_type value_type;
typedef typename std::iterator_traits<Iterator>::reference reference;
typedef typename boost::return_category<Iterator>::type return_category;
typedef typename std::iterator_traits<Iterator>::iterator_category iterator_category;
typedef typename iterator_category::returns return_category;
void constraints() {
boost::function_requires< ReadableIteratorConcept<Iterator> >();
@@ -91,7 +94,8 @@ namespace boost_concepts {
public:
typedef typename std::iterator_traits<Iterator>::value_type value_type;
typedef typename std::iterator_traits<Iterator>::reference reference;
typedef typename boost::return_category<Iterator>::type return_category;
typedef typename std::iterator_traits<Iterator>::iterator_category iterator_category;
typedef typename iterator_category::returns return_category;
void constraints() {
boost::function_requires< ReadableIteratorConcept<Iterator> >();
@@ -115,8 +119,8 @@ namespace boost_concepts {
template <typename Iterator>
class ForwardTraversalConcept {
public:
typedef typename boost::traversal_category<Iterator>::type
traversal_category;
typedef typename std::iterator_traits<Iterator>::iterator_category iterator_category;
typedef typename iterator_category::traversal traversal_category;
void constraints() {
boost::function_requires< boost::SGIAssignableConcept<Iterator> >();
@@ -135,8 +139,8 @@ namespace boost_concepts {
template <typename Iterator>
class BidirectionalTraversalConcept {
public:
typedef typename boost::traversal_category<Iterator>::type
traversal_category;
typedef typename std::iterator_traits<Iterator>::iterator_category iterator_category;
typedef typename iterator_category::traversal traversal_category;
void constraints() {
boost::function_requires< ForwardTraversalConcept<Iterator> >();
@@ -153,8 +157,8 @@ namespace boost_concepts {
template <typename Iterator>
class RandomAccessTraversalConcept {
public:
typedef typename boost::traversal_category<Iterator>::type
traversal_category;
typedef typename std::iterator_traits<Iterator>::iterator_category iterator_category;
typedef typename iterator_category::traversal traversal_category;
typedef typename std::iterator_traits<Iterator>::difference_type
difference_type;