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nlohmann::adl_serializer::from_json

// (1)
template<typename BasicJsonType, typename TargetType = ValueType>
static auto from_json(BasicJsonType && j, TargetType& val) noexcept(
    noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), val)))
-> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), val), void())

// (2)
template<typename BasicJsonType, typename TargetType = ValueType>
static auto from_json(BasicJsonType && j) noexcept(
noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {})))
-> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {}))

This function is usually called by the get() function of the basic_json class (either explicit or via conversion operators).

  1. This function is chosen for default-constructible value types.
  2. This function is chosen for value types which are not default-constructible.

Parameters

j (in)
JSON value to read from
val (out)
value to write to

Return value

Copy of the JSON value, converted to ValueType

Note

This documentation page is a stub.

Version history

  • Added in version 2.1.0.

Last update: May 1, 2022
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