3a391adf7a
Make the memcmp optimization work for std::deque iterators and safe iterators. Co-authored-by: Jonathan Wakely <jwakely@redhat.com> libstdc++-v3/ChangeLog: 2020-06-08 François Dumont <fdumont@gcc.gnu.org> Jonathan Wakely <jwakely@redhat.com> * include/bits/deque.tcc (__lex_cmp_dit): New. (__lexicographical_compare_aux1): Define overloads for deque iterators. * include/bits/stl_algobase.h (__lexicographical_compare::__3way): New static member function. (__lexicographical_compare<true>::__3way): Likewise. (__lexicographical_compare<true>::__lc): Use __3way. (__lexicographical_compare_aux): Rename to __lexicographical_compare_aux1 and declare overloads for deque iterators. (__lexicographical_compare_aux): Define new forwarding function that calls __lexicographical_compare_aux1 and declare new overloads for safe iterators. (lexicographical_compare): Do not use __niter_base on parameters. * include/debug/safe_iterator.tcc (__lexicographical_compare_aux): Define overloads for safe iterators. * testsuite/25_algorithms/lexicographical_compare/1.cc: Add checks with random access iterators. * testsuite/25_algorithms/lexicographical_compare/deque_iterators/1.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.