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move integer_range to its own file

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[SVN r7716]
This commit is contained in:
Jeremy Siek
2000-09-18 09:47:04 +00:00
parent bbeeb17041
commit 7b17be08a2
1 changed files with 0 additions and 59 deletions
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59
include/boost/pending/iterator_adaptors.hpp
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@ -18,10 +18,6 @@
#include <boost/operators.hpp>
#include <boost/compressed_pair.hpp>
#ifdef BOOST_MSVC
#include <boost/int_iterator.hpp>
#endif
// I was having some problems with VC6. I couldn't tell whether our hack for
// stock GCC was causing problems so I needed an easy way to turn it on and
// off. Now we can test the hack with various compilers and still have an "out"
@ -32,8 +28,6 @@
namespace boost {
#ifndef BOOST_MSVC
// Just a "type envelope"; works around some MSVC deficiencies.
template <class T>
struct type {};
@ -510,59 +504,6 @@ struct reverse_iterators
typedef typename Adaptor::const_iterator const_iterator;
};
//=============================================================================
// Counting Iterator and Integer Range Class
struct counting_iterator_policies : public default_iterator_policies
{
template <class IntegerType>
IntegerType dereference(type<IntegerType>, const IntegerType& i) const
{ return i; }
};
template <class IntegerType>
struct counting_iterator_traits {
typedef IntegerType value_type;
typedef IntegerType reference;
typedef value_type* pointer;
typedef std::ptrdiff_t difference_type;
typedef std::random_access_iterator_tag iterator_category;
};
#endif //#ifndef BOOST_MSVC
template <class IntegerType>
struct integer_range {
#ifdef BOOST_MSVC
typedef int_iterator<IntegerType> iterator;
#else
typedef iterator_adaptor<IntegerType, counting_iterator_policies,
counting_iterator_traits<IntegerType>, IntegerType> iterator;
#endif
typedef iterator const_iterator;
typedef IntegerType value_type;
typedef std::ptrdiff_t difference_type;
typedef IntegerType reference;
typedef IntegerType const_reference;
typedef const IntegerType* pointer;
typedef const IntegerType* const_pointer;
typedef IntegerType size_type;
integer_range(IntegerType start, IntegerType finish)
: m_start(start), m_finish(finish) { }
iterator begin() const { return iterator(m_start); }
iterator end() const { return iterator(m_finish); }
size_type size() const { return m_finish - m_start; }
bool empty() const { return m_finish == m_start; }
void swap(integer_range& x) {
std::swap(m_start, x.m_start);
std::swap(m_finish, x.m_finish);
}
protected:
IntegerType m_start, m_finish;
};
} // namespace boost
#endif