cpp_tests/t28_aggregate_sequential_initialization.cpp at master · s-kramer/cpp_tests · GitHub

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#include <iostream>

#include <vector>

#include <algorithm>

#include <iterator>

struct Widget {

public:

Widget(int num = Widget::count++) :

value(num)

{

// std::cout << "Widget default constructor\n";

// std::cout << "Count: " << count << '\n';

}

Widget(const Widget &rhs)

{

// std::cout << "Widget copy constructor\n";

// std::cout << "Count: " << count << '\n';

value = rhs.value;

count++;

}

unsigned value;

~Widget(void)

{

count--;

// std::cout << "Count: " << count-- << '\n';

}

unsigned get_object_count(void) const {return count;};

private:

static unsigned count;

};

void print_widget(const Widget &w)

{

std::cout << w.get_object_count() << '\n';

}

unsigned Widget::count = 0;

template<typename T, std::size_t N>

std::size_t arr_size(T(&)[N])

{

return N;

}

int main()

{

std::vector<Widget> arr(10, Widget());

std::for_each(arr.begin(), arr.end(), print_widget);

Widget widget_array[10] = {};

for (std::size_t i = 0; i < arr_size(widget_array); i++) {

print_widget(i);

}

for(auto i : widget_array)

print_widget(i);

return 0;

}

cpp_tests/t28_aggregate_sequential_initialization.cpp at master · s-kramer/cpp_tests · GitHub

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