Test

sharded.hh: migrate to concepts #7

Job	Run time
Test with C++20 modules enabled / test	11m 42s
Test (clang++, C++20, dev) / test	16m 1s
Test with DPDK enabled / test	22s
Test (clang++, C++20, debug) / test	15m 38s
Test (clang++, C++20, release) / test	15m 11s
Test (clang++, C++23, debug) / test	16m 32s
Test (clang++, C++23, dev) / test	17m 17s
Test (clang++, C++23, release) / test	15m 24s
Test (g++, C++20, debug) / test	19m 3s
Test (g++, C++20, dev) / test	11m 51s
Test (g++, C++20, release) / test	15m 36s
Test (g++, C++23, debug) / test	18m 37s
Test (g++, C++23, dev) / test	11m 52s
Test (g++, C++23, release) / test	15m 58s
	3h 21m 4s

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