Would it be legal for both the constructor that takes a string and the one that takes an istream& to have default arguments? If not, why not
belongs to book: C++ Primer|Stanley B.Lippman, Josee Lajoie, Barbara E.Moo|5th Edition| Chapter number:7| Question number:39
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C++ programming
It is illegal for both constructors to have default arguments. If then, there will be two default constructors, and that's an error.
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