add to_json method for C arrays #508
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nlohmann
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Mar 16, 2017
src/json.hpp.re2c
Outdated
| @@ -800,6 +800,11 @@ void to_json(BasicJsonType& j, const CompatibleObjectType& arr) | |||
| external_constructor<value_t::object>::construct(j, arr); | |||
| } | |||
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| template <typename BasicJsonType, typename T, std::size_t N, enable_if_t<not std::is_constructible<typename BasicJsonType::string_t, T(&)[N]>::value, int> = 0> | |||
| void to_json(BasicJsonType &j, T (&tab)[N]) { | |||
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We could exploit the knowledge of the size and call a reserve on the internal vector before.
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Indeed, I shall add an overload to external_constructor
theodelrieu
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gregmarr
reviewed
Mar 16, 2017
src/json.hpp.re2c
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| @@ -536,6 +536,19 @@ struct external_constructor<value_t::array> | |||
| } | |||
| j.assert_invariant(); | |||
| } | |||
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| template<typename BasicJsonType, typename T, std::size_t N> | |||
| static void construct(BasicJsonType& j, T (&arr)[N]) | |||
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Can we not use the same implementation as line 523? std::begin and std::end work just fine on built-in arrays.
If the array can be converted to basic_json::string_t, the overload in this commit is not chosen.
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Indeed, I've been sloppy since this morning, good catch |
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Thanks a lot!!! |
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Hi, this commit intends to fix #502.
I don't think there is a way to initialize a C-array from a json object, hence the only
to_jsonoverload in this commit.