json
https://github.com/nlohmann/json
C++
JSON for Modern C++
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- Issues
- Fix #4041: Support zero-member types in NLOHMANN_DEFINE_TYPE_* macros
- basic_json destructor allocates memory, violating noexcept semantics
- Fix serialization macros with no member variables
- VS2026 Insiders, C2678 With C++23 Modules
- Feature: Add constructor support for C++20 Ranges and Views
- MSVC: unexpected behaviour converting from json to a rvalue reference of a variant containing a type that can be constructed from a string
- Use the provided allocator in destroy() (#4842)
- support JSON Merge Patch (RFC 7396) diff creation
- MSVC: make #4526 pass (use #if for optional) - fixes #3859; re-amalgamate
- Add a type in the natvis template for detail::json_default_base
- Docs
- C++ not yet supported