SDL uses a union headed by an enum for event polling (checking key presses, mouse movement, closing the window). I don't think would be possible to properly express tagged unions in APL without massive pain. Instead, I wrote functions that checked if keys were pressed, the mouse was moved and functions that returned relevant data if these events did happen.
PlayStation 5标准版(轻薄款)新售价定为4399元人民币(此前为3599元);
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«Без одобрения НАТО это неосуществимо». Украинские дроны атаковали Россию с прибалтийских территорий. Какую функцию выполнил альянс?20:07
Марина Совина (ночной выпускающий редактор)
This alters the competitive landscape.