16158c9649
The <algorithm> header includes <utility>, with a comment referring to UK-300, a National Body comment on the C++11 draft. That comment proposed to move std::swap to <utility> and then require <algorithm> to include <utility>. The comment was rejected, so we do not need to implement the suggestion. For backwards compatibility with C++03 we do want <algorithm> to define std::swap, but it does so anyway via <bits/move.h>. We don't need the whole of <utility> to do that. A few other headers that need std::swap can include <bits/move.h> to get it, instead of <utility>. There are several headers that include <utility> to get std::pair, but they can use <bits/stl_pair.h> to get it without also including the rel_ops namespace and other contents of <utility>. Signed-off-by: Jonathan Wakely <jwakely@redhat.com> libstdc++-v3/ChangeLog: * include/std/algorithm: Do not include <utility>. * include/std/functional: Likewise. * include/std/regex: Include <bits/stl_pair.h> instead of <utility>. * include/debug/map.h: Likewise. * include/debug/multimap.h: Likewise. * include/debug/multiset.h: Likewise. * include/debug/set.h: Likewise. * include/debug/vector: Likewise. * include/bits/fs_path.h: Likewise. * include/bits/unique_ptr.h: Do not include <utility>. * include/experimental/any: Likewise. * include/experimental/executor: Likewise. * include/experimental/memory: Likewise. * include/experimental/optional: Likewise. * include/experimental/socket: Use __exchange instead of std::exchange. * src/filesystem/ops-common.h: Likewise. * testsuite/20_util/default_delete/48631_neg.cc: Adjust expected errors to not use a hardcoded line number. * testsuite/20_util/default_delete/void_neg.cc: Likewise. * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc: Include <utility> for std::as_const. * testsuite/20_util/specialized_algorithms/uninitialized_default_construct/constrained.cc: Likewise. * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc: Likewise. * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/constrained.cc: Likewise. * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: Adjust dg-error line number. |
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