45 lines
1.9 KiB
C++
45 lines
1.9 KiB
C++
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// fig19_17.cpp
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// Stream manipulators boolalpha and noboolalpha.
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#include <iostream>
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int main() {
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bool booleanValue{true};
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// display default true booleanValue
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std::cout << "booleanValue is " << booleanValue;
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// display booleanValue after using boolalpha
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std::cout << "\nbooleanValue (after using boolalpha) is "
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<< std::boolalpha << booleanValue;
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std::cout << "\n\nswitch booleanValue and use noboolalpha\n";
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booleanValue = false; // change booleanValue
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std::cout << std::noboolalpha; // use noboolalpha
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// display default false booleanValue after using noboolalpha
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std::cout << "\nbooleanValue is " << booleanValue;
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// display booleanValue after using boolalpha again
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std::cout << "\nbooleanValue (after using boolalpha) is "
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<< std::boolalpha << booleanValue << "\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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