<ul><li>The author initially planned to use the placement `new` operator and the `::new` operator in their C++ container implementation.</li><li>They encountered an error when using types with deleted default constructors.</li><li>They learned about the placement `new` operator and how it can be useful for uninitialized memory.</li><li>They discovered the need to use `::operator new` and `::operator delete` for aligned types like `std::shared_ptr`.</li></ul>

You probably don’t know how to write a proper C++ container…

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