Macros

Some aspects of the library can be configured by defining preprocessor macros before including the json.hpp header.

• JSON_ASSERT(x)
• JSON_CATCH_USER(exception)
• JSON_DIAGNOSTICS
• JSON_HAS_CPP_11, JSON_HAS_CPP_14, JSON_HAS_CPP_17, JSON_HAS_CPP_20
• JSON_NOEXCEPTION
• JSON_NO_IO
• JSON_SKIP_UNSUPPORTED_COMPILER_CHECK
• JSON_THROW_USER(exception)
• JSON_TRY_USER
• JSON_USE_IMPLICIT_CONVERSIONS
• NLOHMANN_DEFINE_TYPE_INTRUSIVE(type, member...)
• NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(type, member...)
• NLOHMANN_JSON_SERIALIZE_ENUM(type, ...)
• NLOHMANN_JSON_VERSION_MAJOR, NLOHMANN_JSON_VERSION_MINOR, NLOHMANN_JSON_VERSION_PATCH