JSON for Modern C++ version 3.10.4

[nlohmann]

Release date: 2021-10-16
SHA-256: c9ac7589260f36ea7016d4d51a6c95809803298c7caec9f55830a0214c5f9140 (json.hpp), 62c585468054e2d8e7c2759c0d990fd339d13be988577699366fe195162d16cb (include.zip)

Summary

This release fixes two bugs introduced in release 3.10.0 and fixes the conversion of std::filesystem::path. All changes are backward-compatible.

💰 Note you can support this project via GitHub sponsors or PayPal.

🐛 Bug Fixes

• Fix regression bug introduced in release 3.10.0 which broke compilation for types with an explicit default constructor with default arguments. explicit constructor with default does not compile #3077 Allow to use get with explicit constructor #3079
• Fix regression bug introduced in release 3.10.0 which treated the return values of std::find and std::remove as pointers which could break compilation. Compiler error in output serializer due to 'incompatible initializer' #3081 Revert invalid fix #3082
• Fix converting std::filesystem::path to JSON. Before release 3.10.3, such a conversion would trigger a stack overflow. Release 3.10.3 then further broke compilation on Windows. Version 3.10.3 breaks backward-compatibility with 3.10.2 #3070 fix std::filesystem::path regression #3073

🔥 Deprecated functions

Passing iterator pairs or pointer/length pairs to parsing functions (basic_json::parse, basic_json::accept, basic_json::sax_parse, basic_json::from_cbor, basic_json::from_msgpack, basic_json::from_ubjson, basic_json::from_bson) via initializer lists is deprecated. Instead, pass two iterators; for instance, call basic_json::from_cbor(ptr, ptr+len) instead of basic_json::from_cbor({ptr, len}).

The following functions have been deprecated in earlier versions and will be removed in the next major version (i.e., 4.0.0):

• Function iterator_wrapper are deprecated. Please use the member function items() instead.
• Functions friend std::istream& operator<<(basic_json&, std::istream&) and friend std::ostream& operator>>(const basic_json&, std::ostream&) are deprecated. Please use friend std::istream& operator>>(std::istream&, basic_json&) and friend operator<<(std::ostream&, const basic_json&) instead.

All deprecations are annotated with HEDLEY_DEPRECATED_FOR to report which function to use instead.

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This discussion was created from the release JSON for Modern C++ version 3.10.4.