50 lines
2.2 KiB
C++
50 lines
2.2 KiB
C++
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// fig19_19.cpp
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// Testing error states.
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#include <iostream>
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int main() {
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int integerValue{0};
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// display results of cin functions
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std::cout << std::boolalpha << "Before a bad input operation:"
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<< "\ncin.rdstate(): " << std::cin.rdstate()
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<< "\n cin.eof(): " << std::cin.eof()
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<< "\n cin.fail(): " << std::cin.fail()
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<< "\n cin.bad(): " << std::cin.bad()
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<< "\n cin.good(): " << std::cin.good()
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<< "\n\nExpects an integer, but enter a character: ";
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std::cin >> integerValue; // enter character value
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// display results of cin functions after bad input
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std::cout << "\nAfter a bad input operation:"
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<< "\ncin.rdstate(): " << std::cin.rdstate()
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<< "\n cin.eof(): " << std::cin.eof()
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<< "\n cin.fail(): " << std::cin.fail()
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<< "\n cin.bad(): " << std::cin.bad()
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<< "\n cin.good(): " << std::cin.good();
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std::cin.clear(); // clear stream
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// display results of cin functions after clearing cin
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std::cout << "\n\nAfter cin.clear()"
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<< "\ncin.fail(): " << std::cin.fail()
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<< "\ncin.good(): " << std::cin.good() << "\n";
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}
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/**************************************************************************
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* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
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* Pearson Education, Inc. All Rights Reserved. *
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* *
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* DISCLAIMER: The authors and publisher of this book have used their *
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* best efforts in preparing the book. These efforts include the *
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* development, research, and testing of the theories and programs *
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* to determine their effectiveness. The authors and publisher make *
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* no warranty of any kind, expressed or implied, with regard to these *
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* programs or to the documentation contained in these books. The authors *
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* and publisher shall not be liable in any event for incidental or *
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* consequential damages in connection with, or arising out of, the *
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* furnishing, performance, or use of these programs. *
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**************************************************************************/
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