C++，C++/CX に挑戦！

//
// MainPage.xaml.cpp
// MainPage クラスの実装。
//

#include "pch.h"
#include "MainPage.xaml.h"

using namespace App14;

using namespace Platform;
using namespace Windows::Foundation;
using namespace Windows::Foundation::Collections;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Controls;
using namespace Windows::UI::Xaml::Controls::Primitives;
using namespace Windows::UI::Xaml::Data;
using namespace Windows::UI::Xaml::Input;
using namespace Windows::UI::Xaml::Media;
using namespace Windows::UI::Xaml::Navigation;


MainPage::MainPage()
{
	InitializeComponent();

	StartTimer();
}

float x;
float y;

void MainPage::StartTimer() {
	auto timer = ref new Windows::UI::Xaml::DispatcherTimer();

	TimeSpan span;
	span.Duration = 1000;
	timer->Interval = span;

	timer->Start();
	auto rcpt
		= timer->Tick +=
		ref new EventHandler<Object^>(this, &MainPage::OnTick);
}

void MainPage::OnTick(Object^ sender, Object^ e) {
	x += 1; y += 1;

        // Thickness(x, y, 0, 0) で、Margin(x, y, 0, 0) を指定しています。 
	image->Margin = Windows::UI::Xaml::Thickness(x, y, 0, 0);
}

#include <iostream>
#include <string>
using namespace Platform;

int main(Array<String^>^ args)
{
    setlocale(LC_ALL, "Japanese");

    Array<String^>^ ary1 = ref new Array<String^>(3);
    ary1[0] = "愛媛県";
    ary1[1] = "神奈川県";
    ary1[2] = "福島県";

    Array<int>^ ary2 = { 100, 200, 300 };

    std::cout << ary1->Length << '\n';
    std::cout << ary2->Length << '\n';

    for (auto x : ary1) {
        std::wstring wstr(x->Data());
        std::wcout << wstr << ' ';
    }
    std::wcout <<'\n';

    for (auto x : ary2) {
        std::cout << x << ' ';
    }
    std::cout << '\n';

    int* ptr = ary2->begin();
    std::cout << *ptr << ' '            // 100
        << *(ptr + 1) << ' '            // 200
        << *(ary2->end() - 1) << '\n';	// 300
}

#include <iostream>

int main(Platform::Array<Platform::String^>^ args)
{
    try {
        for (int i = 0; i < 5000; i++)
            for (int j = 0; j < 5000; j++)
                std::wstring* p
                    = new std::wstring(L"あいうえお");
        std::wcout.imbue(std::locale("japanese"));
        std::wcout << L"作業完了\n";
    }
    catch (std::bad_alloc& e) {
        std::cout << e.what() << '\n';
    }
}

#include <iostream>

int main(Platform::Array<Platform::String^>^ args)
{
    try {
        for (int i = 0; i < 5000; i++)
            for (int j = 0; j < 5000; j++)
                Platform::String^ s
                = ref new Platform::String(L"あいうえお");
        std::wcout.imbue(std::locale("japanese"));
        std::wcout << L"作業完了\n";
    }
    catch (std::bad_alloc& e) {
        std::cout << e.what() << '\n';
    }
}

#include <iostream>
#include <string>
using namespace Platform;
using namespace std;

int main(Array<String^>^ args)
{
    //【１】
    setlocale(LC_ALL, "Japanese");
//	wcout.imbue(std::locale("japanese"));

    //【２】
    String^ str1 = "あいうえお_ABCDE";

    //【３】
    wstring str2(str1->Data());
//	wstring str2(str1->Begin());

    //【４】
    wchar_t const* str3(str1->Data());
//	wchar_t const* str3(str1->Begin());

    wcout << "(1) " << str2 << '\n';
    wcout << "(2) " << str3 << '\n';

    //【５】
    wstring rep(L"かさたな");
    str2.replace(1, 4, rep);
    wcout << "(3) " << str2 << '\n';

    //【６】
    wchar_t const* str4 = str2.c_str();

    //【７】
    wstring str5 = wstring(str3);

    //【８】
    String^ str6 = ref new String(str4);

    //【９】
    String^ str7 = ref new String(str5.c_str());

    //【10】
    auto str8(str6->Data());
    auto str9(str7->Data());

    cout << "(4) " << typeid(str8).name() << '\n';
    cout << "(5) " << typeid(str9).name() << '\n';

    wcout << "(6) " << str8 << '\n';
    wcout << "(7) " << str9 << '\n';
}

#include <iostream>

ref class C {
public:
    void f() { std::wcout << L"ABCDE" << "\n"; }
};

int main(Platform::Array<Platform::String^>^ args)
{
    C^ c_01 = ref new C;
    c_01->f();
}

#include <iostream>
#include <string>

int main(Platform::Array<Platform::String^>^ args) {
    for (auto pstr : args) {
        wchar_t const* wcs(pstr->Begin());
        std::wcout << wcs << ' ';
    }
    std::cout << '\n';
}

#include <iostream>

ref class C
{
public:
    void f(int n) {
        for (int i = n; i < n + 10; i++)
            std::cout << i << " ";
        std::cout << '\n';
    }
};

int main(Platform::Array<Platform::String^>^ args) {
    (ref new C)->f(10);
}

#include <iostream>
#include <ppltasks.h>
using namespace concurrency;
using namespace std;

int main() {
    int a = 5;

    auto t1 = task<int>([&a]() {
        return  a = a * a * a * a ;
    });

    cout << a << '\n';
    t1.wait();
    cout << a << '\n';
}

#include <iostream>
#include <ppltasks.h>
#include <string>
using namespace concurrency;
using namespace std;

int main() {
    // create_task関数で taskオブジェクトを作る例
    auto t1 = create_task([] { cout << "aaaaaa\n"; });
    auto t2 = t1.then([] { return "xxxxxx"; });
    auto t3 = t2.then([](string str) { cout << 100 << '\n'; });
    auto t4 = t3.then([] { return 888; });

    // コンストラクタで taskオブジェクトを作る例
    t4.wait();
    auto t5 = task<void>([] { cout << "bbbbbb\n"; });
    auto t6 = task<string>([] { return "yyyyyy"; });
    t5.wait();
    auto t7 = task<void>([] { cout << 200 << '\n'; });
    auto t8 = task<int>([] { return 999; });

    t7.wait();
    cout << t2.get() << '\n';
    cout << t4.get() << '\n';
    cout << t6.get() << '\n';
    cout << t8.get() << '\n';
}