Hello, I have some questions regarding the test: 1) You have asked why did I chose this constexpr hashing function, do you mean this for the hashing algorithm it self like its collision rate and speed relative to other hashing algorithms? 2) I wanted to check about the elegant and useful error for the case of using an array of different size or using non string literals, does the error message appearing here http://melpon.org/wandbox/permlink/TFEP1yUc7pjukowH suffice? 3) Can I have feedback on the code and the simple tests? http://melpon.org/wandbox/permlink/HiFu9KXClEWDS1Of Thanks in advance. Karim Amr, Seniors Class, Software Engineer -- View this message in context: http://boost.2283326.n4.nabble.com/gsoc16-Static-Map-Competency-test-tp46833... Sent from the Boost - Dev mailing list archive at Nabble.com.