enumerable_aggregate5.cpp

Shows how to use xtd::linq::enumerable::aggregate method.

#include <xtd/xtd>
 
auto main() -> int {
  auto ints = array {4, 8, 8, 3, 9, 0, 7, 8, 2}.items();
  
  // Count the even numbers in the array, using a seed value of 0.
  auto num_even = from(ints).aggregate(0, [](int total, int next) {
    return next % 2 == 0 ? total + 1 : total;
  });
  
  console::write_line("The number of even integers is: {}", num_even);
}
 
// This code produces the following output :
//
// The number of even integers is: 6