Andrey Semashev 7fa65a4278 Made iterator operators conditionally defined depending on its category. ...

This makes iterators defined using iterator_facade more friendly to type inspection and fixes its use with next()/prior() since commit 651a869d4f.
The arithmetic, indexing and relational operators are only defined if the iterator category or traversal permits that. Note that the implementation requires partial template specialization support now.

2014-06-30 00:05:38 +04:00

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boost

Made iterator operators conditionally defined depending on its category.

2014-06-30 00:05:38 +04:00