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UGC NET CSE | December 2012 | Part 2 | Question: 42

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Which of the following mode declaration used in C++ to open a file for input?

  1. ios : : app
  2. in : : ios
  3. ios : : file
  4. ios : : in
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ios::in mode declaration is used in ++ for open a file.

Hence,Option(D)ios::in .

Reference:-http://www.tutorialspoint.com/cplusplus/cpp_files_streams.htm

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