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json/doc/mkdocs/docs/api/adl_serializer/index.md
Niels Lohmann 29cd970b94
Consolidate documentation (#3071) 
* 🔥 consolidate documentation
* ♻️ overwork std specializations
* 🚚 move images files to mkdocs
* ♻️ fix URLs
* 🔧 tweak MkDocs configuration
* 🔧 add namespaces
* 📝 document deprecations
* 📝 document documentation generation
* 🚸 improve search
* 🚸 add examples
* 🚧 start adding documentation for macros
* 📝 add note for https://github.com/nlohmann/json/issues/874#issuecomment-1001699139
* 📝 overwork example handling
* 📝 fix Markdown tables
2021-12-29 13:41:01 +01:00

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nlohmann::adl_serializer

template<typename, typename>
struct adl_serializer;

Serializer that uses ADL (Argument-Dependent Lookup) to choose to_json/from_json functions from the types' namespaces.

It is implemented similar to

template<typename ValueType>
struct adl_serializer {
    template<typename BasicJsonType>
    static void to_json(BasicJsonType& j, const T& value) {
        // calls the "to_json" method in T's namespace
    }

    template<typename BasicJsonType>
    static void from_json(const BasicJsonType& j, T& value) {
        // same thing, but with the "from_json" method
    }
};

Member functions

  • from_json - convert a JSON value to any value type
  • to_json - convert any value type to a JSON value

Version history

  • Added in version 2.1.0.