combinations's People
combinations's Issues
Signature Question
Thanks very much for posting your code -- it is very helpful and fun to study! I have a small question...
Q: Is there are reason you chose to define the signature as:
template <class BidirIter, class Function>
Function
for_each_permutation(BidirIter first, BidirIter mid,
BidirIter last, Function f)
instead of using references for Function
e.g.:
template <class BidirIter, class Function>
Function &
for_each_permutation(BidirIter first, BidirIter mid,
BidirIter last, Function &f)
I noticed the return std::move(f);
but its proper usage is not something I fully understand (every time I've tried return std::move(...)
, clang says I'm being silly...).
Anyway, apologies in advance for asking a c++ question rather than a combinatorics question -- i've got those as well, but this was the first hurdle I hit...
cheers, nehal
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