Niels Lohmann d969eef216 Support zero-member types in NLOHMANN_DEFINE_TYPE_* macros (#4041) ...

NLOHMANN_DEFINE_TYPE_INTRUSIVE(Type) and its 11 sibling macros produced
broken code for types with no members to serialize. Invoking a variadic
macro so __VA_ARGS__ is empty is only standard-conforming since C++20,
so a plain __VA_OPT__ fix (as tried in #5142) breaks every pre-C++20
build under -pedantic. Instead, make all 12 macros purely variadic and
dispatch on argument count using a sentinel-padded extension of the
existing NLOHMANN_JSON_GET_MACRO idiom, giving full C++11-C++26 support
with no feature-test gate.

Verified against real GCC 16 and Clang at -std=c++11/14/17/20 with
-pedantic -Werror -Wvariadic-macros: zero regressions in the existing
unit-udt_macro.cpp suite plus 12 new zero-member test cases.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

2026-07-11 19:55:56 +02:00

..

fuzzer-driver_afl.cpp

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fuzzer-parse_bjdata.cpp

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fuzzer-parse_bson.cpp

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fuzzer-parse_cbor.cpp

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fuzzer-parse_json.cpp

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fuzzer-parse_msgpack.cpp

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fuzzer-parse_ubjson.cpp

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make_test_data_available.hpp

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test_utils.hpp

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unit-32bit.cpp

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unit-algorithms.cpp

🔒 fix security findings (#5245)

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unit-allocator.cpp

Fix stale Clang -Weverything suppression comments; drop -Wno-missing-noreturn (#5250)

2026-07-09 20:18:28 +02:00

unit-alt-string.cpp

📝 Document cross-basic_json conversion limitation (#3425) (#5249)

2026-07-09 06:44:51 +02:00

unit-assert_macro.cpp

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unit-binary_formats.cpp

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unit-bjdata.cpp

Add iterator+sentinel tests and docs for binary deserializers (#5265)

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unit-bson.cpp

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unit-byte_container_with_subtype.cpp

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unit-capacity.cpp

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unit-cbor.cpp

Add iterator+sentinel tests and docs for binary deserializers (#5265)

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unit-class_const_iterator.cpp

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unit-class_iterator.cpp

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unit-class_lexer.cpp

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unit-class_parser_diagnostic_positions.cpp

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unit-class_parser.cpp

Reconstruct lexer diagnostics lazily for seekable input (#120) (#5234)

2026-07-05 10:42:48 +02:00

unit-comparison.cpp

Fix #3868: Remove operator!= to enable P2468R2 rewritten candidate synthesis (#5253)

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unit-concepts.cpp

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unit-constructor1.cpp

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unit-constructor2.cpp

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unit-convenience.cpp

Replace snprintf with a branch-free writer for \uXXXX escapes (#5235)

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unit-conversions.cpp

Document std::optional<T> direct construction limitation (#5247)

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unit-custom-base-class.cpp

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unit-deserialization.cpp

Migrate remaining CI jobs off custom json-ci image to official images (#5263)

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unit-diagnostic-positions-only.cpp

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unit-diagnostic-positions.cpp

🐛 avoid assertion in patch (#5222)

2026-07-01 06:47:24 +02:00

unit-diagnostics.cpp

Fix: update() parent pointers not updated after recursive merge with JSON_DIAGNOSTICS (#5187)

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unit-disabled_exceptions.cpp

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unit-element_access1.cpp

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unit-element_access2.cpp

Extend value to arrays when using JSON pointers (#5223)

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unit-format-as.cpp

Add std::format and fmt support (#5224)

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unit-hash.cpp

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unit-inspection.cpp

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unit-items.cpp

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unit-iterators1.cpp

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unit-iterators2.cpp

Fix #3868: Remove operator!= to enable P2468R2 rewritten candidate synthesis (#5253)

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unit-iterators3.cpp

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unit-json_patch.cpp

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unit-json_pointer.cpp

Add front methods to json_pointers (implements #4889) (#5152)

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unit-large_json.cpp

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unit-locale-cpp.cpp

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unit-merge_patch.cpp

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unit-meta.cpp

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unit-modifiers.cpp

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unit-msgpack.cpp

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unit-no-mem-leak-on-adl-serialize.cpp

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unit-noexcept.cpp

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unit-ordered_json.cpp

🚨 fix warning (#5169)

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unit-ordered_map.cpp

Add missing overload to ordered_map::find (#5171)

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unit-pointer_access.cpp

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unit-readme.cpp

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unit-reference_access.cpp

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unit-regression1.cpp

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unit-regression2.cpp

Custom BinaryType direct assignment (#5266)

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unit-serialization.cpp

Document number conversion (#5208)

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unit-std-format.cpp

Add std::format and fmt support (#5224)

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unit-testsuites.cpp

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unit-to_chars.cpp

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unit-type_traits.cpp

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unit-ubjson.cpp

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unit-udl.cpp

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unit-udt_macro.cpp

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unit-udt.cpp

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unit-unicode1.cpp

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unit-unicode2.cpp

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unit-unicode3.cpp

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unit-unicode4.cpp

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unit-unicode5.cpp

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unit-user_defined_input.cpp

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unit-windows_h.cpp

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unit-wstring.cpp

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unit.cpp

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