etl
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Feature/add back insert iterator
Add back_insert_iterator and back_inserter()
The all iterator tags should use the ETL_OR_STD namespace.
I think there should be also be a matching etl::back_inserter defined.
There is also the complementary front_insert_iterator & etl::front_inserter in the STL.
Was there a particular reason that you used ETL_CONSTEXPR17 instead of ETL_CONSTEXPR14?
Was there a particular reason that you used
ETL_CONSTEXPR17instead ofETL_CONSTEXPR14?
I can not remember the link but I have adapted the source from the std implementation and the constexpr was added since C++17.