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Thread: type checking

  1. January 13th, 2004 03:00 AM #1
    satoshi
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    type checking

    if i got an iterator
    how can i sure that it is a random access iterator??

    will it be a way for testing it??
    thank for reply

    regard
    SAto
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  2. January 13th, 2004 03:58 AM #2
    Kheun
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    If I am not wrong, only iterators from std::vector and std::string are random access iterator.
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  3. January 13th, 2004 06:01 AM #3
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    Graham
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    You might write your own container with random-access iterators...

    There is std::iterator_traits that can tell you the category of an iterator. This requires some extreme template programming, of course.
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  4. January 13th, 2004 06:02 AM #4
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    Graham
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    Oh, and std::deque is, I believe, random access.
    Correct is better than fast. Simple is better than complex. Clear is better than cute. Safe is better than insecure.
    --     Sutter and Alexandrescu, C++ Coding Standards

    Programs must be written for people to read, and only incidentally for machines to execute.
    --     Harold Abelson and Gerald Jay Sussman

    The cheapest, fastest and most reliable components of a computer system are those that aren't there.
     -- Gordon Bell
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