40 lines
1.7 KiB
C++
40 lines
1.7 KiB
C++
// fig14_01.cpp
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// Lambda expressions.
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#include <algorithm>
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#include <array>
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#include <iostream>
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#include <iterator>
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int main() {
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std::array values{1, 2, 3, 4}; // initialize values
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std::ostream_iterator<int> output{std::cout, " "};
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std::cout << "values contains: ";
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std::ranges::copy(values, output);
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// output each element multiplied by two
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std::cout << "\nDisplay each element multiplied by two: ";
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std::ranges::for_each(values, [](auto i) {std::cout << i * 2 << " ";});
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// add each element to sum
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int sum{0}; // initialize sum to zero
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std::ranges::for_each(values, [&sum](auto i) {sum += i;});
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std::cout << "\nSum of value's elements is: " << sum << "\n";
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}
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/**************************************************************************
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* (C) Copyright 1992-2021 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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