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added some #ifdefs to prevent compilation of workaround code

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[SVN r8688]
This commit is contained in:
Jeremy Siek
2001-01-21 20:28:02 +00:00
parent a31a89ae7d
commit c948483ec1
1 changed files with 14 additions and 16 deletions
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30
include/boost/pending/iterator_adaptors.hpp
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@ -230,7 +230,8 @@ inline bool operator<=(const iterator_comparisons<D1,Base1>& xb,
namespace detail {
// Dummy versions for iterators that don't support member access
#if defined(__sgi) && !defined(__GNUC__)
// Dummy versions for iterators that don't support various operators
template <class Iter>
inline typename Iter::pointer
operator_arrow(const Iter&, std::input_iterator_tag) {
@ -242,33 +243,30 @@ namespace detail {
return typename Iter::pointer();
}
// Real version
template <class Iter, class Diff>
inline void advance_impl(Iter&, Diff, std::input_iterator_tag) { }
template <class Iter, class Diff>
inline void advance_impl(Iter&, Diff, std::output_iterator_tag) { }
template <class Iter>
inline void decrement_impl(Iter&, std::input_iterator_tag) { }
template <class Iter>
inline void decrement_impl(Iter&, std::output_iterator_tag) { }
#endif
// Real versions
template <class Iter>
inline typename Iter::pointer
operator_arrow(const Iter& i, std::forward_iterator_tag) {
return &(*i);
}
// Dummy version for non-random access iterators
template <class Iter, class Diff>
inline void advance_impl(Iter&, Diff, std::input_iterator_tag) { }
template <class Iter, class Diff>
inline void advance_impl(Iter&, Diff, std::output_iterator_tag) { }
// Real version
template <class Iter, class Diff>
inline void
advance_impl(Iter& i, Diff n, std::random_access_iterator_tag) {
i.policies().advance(i.iter(), n);
}
// Dummy versions for non-bidirectional iterators
template <class Iter>
inline void decrement_impl(Iter&, std::input_iterator_tag) { }
template <class Iter>
inline void decrement_impl(Iter&, std::output_iterator_tag) { }
// Real version
template <class Iter>
inline void
decrement_impl(Iter& i, std::bidirectional_iterator_tag) {