as an aside, the header lib/test/microbenchmark.hpp turns out to be prolific for this kind of investigation. However, it is somewhat obnoxious that the »test subject« must expose the signature <size_t(size_t)>. Thus, with some metaprogramming magic, an generic adaptor can be built to accept a range of typical alternatives, and even the quite obvious signature void(void). Since all these will be wrapped directly into a lambda, the optimiser will remove these adaptations altogether. |
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