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from a5ebbb98a15 Fix typo in preprocessor check new 0d58cdb0d89 Apply C++20 changes to various iterator types new 0fb0c4144bc Remove some more using-declarations from namespace __gnu_cxx

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Summary of changes: libstdc++-v3/ChangeLog | 47 ++++++++ libstdc++-v3/include/bits/stl_bvector.h | 8 ++ libstdc++-v3/include/bits/stl_iterator.h | 12 +- libstdc++-v3/include/bits/streambuf_iterator.h | 15 +++ libstdc++-v3/include/ext/algorithm | 57 +++++----- libstdc++-v3/include/ext/rc_string_base.h | 3 +- libstdc++-v3/include/ext/sso_string_base.h | 3 +- .../vector/bool/iterator_c++20.cc} | 23 ++-- .../24_iterators/bidirectional/concept.cc | 81 ++++++++++++++ .../bidirectional/tag.cc} | 22 ++-- .../testsuite/24_iterators/contiguous/concept.cc | 64 +++++++++-- .../testsuite/24_iterators/contiguous/tag.cc | 4 + .../testsuite/24_iterators/forward/concept.cc | 86 +++++++++++++++ .../dr2586.cc => 24_iterators/forward/tag.cc} | 22 ++-- .../testsuite/24_iterators/input/concept.cc | 89 +++++++++++++++ .../dr2586.cc => 24_iterators/input/tag.cc} | 22 ++-- .../istreambuf_iterator/requirements/typedefs.cc | 51 ++++++++- .../26020.cc | 0 .../ostreambuf_iterator/requirements/typedefs.cc | 46 ++++++++ .../testsuite/24_iterators/output/concept.cc | 121 +++++++++++++++++++++ .../dr2586.cc => 24_iterators/output/tag.cc} | 22 ++-- .../24_iterators/random_access/concept.cc | 76 +++++++++++++ .../string_vector_iterators.cc | 0 .../91308.cc => 24_iterators/random_access/tag.cc} | 43 +++----- .../advance_debug_neg.cc} | 15 ++- 25 files changed, 790 insertions(+), 142 deletions(-) copy libstdc++-v3/testsuite/{25_algorithms/adjacent_find/constexpr.cc => 23_contai [...] create mode 100644 libstdc++-v3/testsuite/24_iterators/bidirectional/concept.cc copy libstdc++-v3/testsuite/{20_util/scoped_allocator/dr2586.cc => 24_iterators/bi [...] create mode 100644 libstdc++-v3/testsuite/24_iterators/forward/concept.cc copy libstdc++-v3/testsuite/{20_util/scoped_allocator/dr2586.cc => 24_iterators/fo [...] create mode 100644 libstdc++-v3/testsuite/24_iterators/input/concept.cc copy libstdc++-v3/testsuite/{20_util/scoped_allocator/dr2586.cc => 24_iterators/in [...] rename libstdc++-v3/testsuite/24_iterators/{random_access_iterator => operations}/ [...] create mode 100644 libstdc++-v3/testsuite/24_iterators/output/concept.cc copy libstdc++-v3/testsuite/{20_util/scoped_allocator/dr2586.cc => 24_iterators/ou [...] create mode 100644 libstdc++-v3/testsuite/24_iterators/random_access/concept.cc rename libstdc++-v3/testsuite/24_iterators/{random_access_iterator => random_acces [...] copy libstdc++-v3/testsuite/{20_util/unique_ptr/assign/91308.cc => 24_iterators/ra [...] copy libstdc++-v3/testsuite/24_iterators/{ostream_iterator/requirements/constexpr. [...]