40 lines
1.7 KiB
C++
40 lines
1.7 KiB
C++
// fig06_12.cpp
|
|
// Compute the product of an array's elements using accumulate.
|
|
#include <array>
|
|
#include <format>
|
|
#include <iostream>
|
|
#include <numeric>
|
|
|
|
int multiply(int x, int y) {
|
|
return x * y;
|
|
}
|
|
|
|
int main() {
|
|
constexpr std::array integers{1, 2, 3, 4, 5};
|
|
auto multiply_lambda = [](const auto& x, const auto& y) {return x * y; };
|
|
|
|
std::cout << std::format("Product of integers: {}\n", std::accumulate(
|
|
std::begin(integers), std::end(integers), 1, multiply));
|
|
|
|
std::cout << std::format("Product of integers with a lambda: {}\n",
|
|
std::accumulate(std::begin(integers), std::end(integers), 1,
|
|
multiply_lambda));
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
|
|
* Pearson Education, Inc. All Rights Reserved. *
|
|
* *
|
|
* DISCLAIMER: The authors and publisher of this book have used their *
|
|
* best efforts in preparing the book. These efforts include the *
|
|
* development, research, and testing of the theories and programs *
|
|
* to determine their effectiveness. The authors and publisher make *
|
|
* no warranty of any kind, expressed or implied, with regard to these *
|
|
* programs or to the documentation contained in these books. The authors *
|
|
* and publisher shall not be liable in any event for incidental or *
|
|
* consequential damages in connection with, or arising out of, the *
|
|
* furnishing, performance, or use of these programs. *
|
|
**************************************************************************/
|
|
|