36 lines
1.6 KiB
C++
36 lines
1.6 KiB
C++
// fig07_03.cpp
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// Pass-by-reference with a pointer argument used to cube a
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// variable's value.
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#include <fmt/format.h>
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#include <iostream>
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void cubeByReference(int* nPtr); // prototype
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int main() {
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int number{5};
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std::cout << fmt::format("Original value of number is {}\n", number);
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cubeByReference(&number); // pass number address to cubeByReference
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std::cout << fmt::format("New value of number is {}\n", number);
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}
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// calculate cube of *nPtr; modifies variable number in main
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void cubeByReference(int* nPtr) {
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*nPtr = *nPtr * *nPtr * *nPtr; // cube *nPtr
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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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