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make to_json SFINAE-correct

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This commit is contained in:
Théo DELRIEU
2018-09-06 16:08:01 +02:00
parent f7c8a2145a
commit f7971f04a5
3 changed files with 22 additions and 58 deletions
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6
include/nlohmann/adl_serializer.hpp
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@ -35,9 +35,11 @@ struct adl_serializer
@param[in,out] j JSON value to write to
@param[in] val value to read from
*/
template<typename BasicJsonType, typename ValueType>
static void to_json(BasicJsonType& j, ValueType&& val) noexcept(
template <typename BasicJsonType, typename ValueType>
static auto to_json(BasicJsonType& j, ValueType&& val) noexcept(
noexcept(::nlohmann::to_json(j, std::forward<ValueType>(val))))
-> decltype(::nlohmann::to_json(j, std::forward<ValueType>(val)),
void())
{
::nlohmann::to_json(j, std::forward<ValueType>(val));
}