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We optimize std::equal to memcmp for integers and pointers, which means that std::byte comparisons generate bigger code than char comparisons. We can't use memcmp for arbitrary enum types, because they could have an overloaded operator== that has custom semantics, but we know that std::byte doesn't do that. libstdc++-v3/ChangeLog: PR libstdc++/101485 * include/bits/stl_algobase.h (__equal_aux1): Check for std::byte as well. * testsuite/25_algorithms/equal/101485.cc: New test. |
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file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.