Overloaded Operators Can Be Used to Test a Stream's State

question 24

Multiple Choice

Overloaded operators can be used to test a stream's state in conditions. The operator! member function, inherited into the stream classes from class basic_ios, returns true if the badbit, the failbit or both are true. The ________ member function (added in C++11) returns false if the badbit is true, the failbit is true or both are true.

• A) operator boolalpha
• B) operator!
• C) operator boolean
• D) operator bool

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