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Niels LohmannandClaude Opus 5
1961144874
Clang-Tidy rejects a swap that is not:
error: swap functions should be marked noexcept
[cppcoreguidelines-noexcept-swap,performance-noexcept-swap]
It was left unmarked on the grounds that std::map::swap is only
conditionally noexcept, so an unconditional promise would be wrong for a
comparator or allocator that can throw while swapping. Both concerns are met
by taking the specification from the wrapped map rather than asserting one:
noexcept(noexcept(data.swap(other.data))). Clang-Tidy accepts that, and no
NOLINT is needed.
Last in the series of specifications that inheritance used to supply and
composition has to write out by hand.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018hxZxz8svM54c6ATEvXp5E
Signed-off-by: Niels Lohmann <mail@nlohmann.me>