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from 5dd5507265e C-family : Fix a C++ ODR violation [PR97854]. new 5f75e80ecb3 [PATCH] Objective-C: NeXT runtime fixes. new 903c18c65c4 Objective-C, NeXT: Fix messenging non-aggregate return-in-memory. new 22b86cdc4d7 libstdc++: Implement P2325 changes to default-constructibil [...] new 656cd104362 libstdc++: invalid default init in _CachedPosition [PR101231]

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Summary of changes: gcc/c-family/c-opts.c | 4 +- gcc/config/darwin-sections.def | 1 + gcc/config/darwin.c | 2 + gcc/objc/objc-gnu-runtime-abi-01.c | 32 +--- gcc/objc/objc-next-metadata-tags.h | 2 + gcc/objc/objc-next-runtime-abi-01.c | 9 +- gcc/objc/objc-next-runtime-abi-02.c | 58 +++---- gcc/objc/objc-runtime-shared-support.c | 9 +- libstdc++-v3/include/bits/iterator_concepts.h | 3 +- libstdc++-v3/include/bits/stl_iterator.h | 3 +- libstdc++-v3/include/std/ranges | 80 ++++++---- libstdc++-v3/include/std/span | 3 +- libstdc++-v3/testsuite/std/ranges/istream_view.cc | 12 ++ libstdc++-v3/testsuite/std/ranges/p2325.cc | 181 ++++++++++++++++++++++ libstdc++-v3/testsuite/std/ranges/single_view.cc | 15 ++ libstdc++-v3/testsuite/std/ranges/view.cc | 2 +- 16 files changed, 308 insertions(+), 108 deletions(-) create mode 100644 libstdc++-v3/testsuite/std/ranges/p2325.cc