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View Code? Open in Web Editor NEWA guide for the rest of us on using C++ templates.
License: MIT License
A guide for the rest of us on using C++ templates.
License: MIT License
Your implementation of count
is quite inefficient and neddlessly increases compile times. This would be better:
template <class... T>
using count = std::integral_constant<std::size_t, sizeof...(T)>;
(as remarked on Hacker News by shin_lao
: https://news.ycombinator.com/item?id=12575366)
Additionally, you use typedef
a lot in the first example - I think using
should be preferred, as it's easier to read (and can be templated).
The internet at large has suggested that the first example doesn't really improve using a C API. While I don't think those criticisms are without merit, I've decided to keep it up for now because it serves my main goal of introducing concepts like SFINAE.
As for whether it is actually a detriment to wrap a C-style API in the way I've suggested, in my opinion it's neither clearly a detriment nor a great improvement. The argument seems to be that it makes the code needlessly more complex. I consider that a matter of opinion.
But please feel free to comment here if you feel strongly about it!
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