Tutorial: Emulating strong/opaque typedefs in C++—Jonathan Müller

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Tutorial: Emulating strong/opaque typedefs in C++

by Jonathan Müller

From the article:

Last week, I’ve released my type_safe library. I described it’s features in the corresponding blog post but because the blog post got rather long, I couldn’t cover one feature: strong typedefs.

Strong or opaque typedefs are a very powerful feature if you want to prevent errors with the type system - and as I’ve been advocating for, you want that. Unlike “normal” typedefs, they are a true type definition: they create a new type and allow stuff like overloading on them and/or prevent implicit conversions.

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