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Niels LohmannandClaude Sonnet 5.5
951271127b
* Binary readers: append strings straight from contiguous input get_bytes() read every string into a zero-filled resize() and copied the bytes over it, so each byte was written twice. A string that the input holds in one block (bulk_remaining() at least its length) is now appended from it directly. The claimed length is checked against the input first, so a huge claimed length still allocates nothing it cannot fill; other inputs and binary values keep the chunked loop. from_cbor() and from_msgpack() of twitter.json and citm_catalog.json get 5.5-9.1% faster on an Apple M1 Max and 2.7-8.6% on x86-64 (GCC 15, Clang 21); canada.json, which has few strings, is unchanged. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Binary readers: keep the tag argument of append_from_block() astyle-proof Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix CI: bugprone-signed-char-misuse in append_from_block Convert the (positive) length to its unsigned type before widening it to std::size_t, as clang-tidy flags the int8_t to std::size_t cast. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Tests: sweep_allocator::construct() accepts pointers to const Recent libc++ (emsdk latest) probes construct(const T*, const T&) in an unevaluated context while checking for trivial copies; the static_cast to void* in the noexcept specification then fails to compile. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N5NasEsrzHhSNouxSoEwqz (cherry picked from commit 794bf70823c12a2a1cb2a8a95f34dfb6357746a8) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Tests: guard sweep_allocator::construct() against const types instead of const_cast The const_cast added in the previous commit is rejected by cppcoreguidelines-pro-type-const-cast (clang-tidy). Make construct() not viable for const U instead, which is what libc++ probes for. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N5NasEsrzHhSNouxSoEwqz (cherry picked from commit de099fa607001b710862fd1bbecef3609c54cbc4) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix CI: astyle and clang-tidy for sweep_allocator::construct() astyle 3.4.13 reformats the enable_if<!...> default template argument (Check amalgamation). Delete the const overload instead, which makes the libc++ probe for const objects fail in the SFINAE context just the same and needs no <type_traits>. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N5NasEsrzHhSNouxSoEwqz Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>