Thread: ios::in with ifstream? Why?

  1. 01-30-2006 #1
    siavoshkc
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    ios::in with ifstream? Why?

    Why we should use ios::in or ios:ut when we use ifstream or ofstream respectivly?
    It is obvious that we want to input data when we use ifstream.
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  2. 01-30-2006 #2
    skorman00
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    You need them for the fstream, which is not quite sure what it's going to do until you tell it ios::in or ios:ut.
  3. 01-30-2006 #3
    siavoshkc
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    But I've seen many places where it came with ifstream or ofstream.
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  4. 01-30-2006 #4
    SirCrono6
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    std::ifstream and std:fstream automatically have std::ios::in and std::ios:: out respectively. std::fstream requires you to specify them though.
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  5. 01-30-2006 #5
    siavoshkc
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    OK, Why we should use ofstream or ifstream when fstream exists?
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