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Templates are the main thing in C++ that you can easily use everywhere with zero costs in compatibility.

And they certainly beat C's "equivalent", macros.

You can use macros with C++

That's what wxWidgets did since forever, and to the dismay of C++ purists, I find their code easier to read than most templates.

Not to mention it compiles much faster.

There is hardly any C feature that beats C++ one's. :)