nlohmann-json: 3.4.0 -> 3.5.0
https://github.com/nlohmann/json/releases/tag/v3.5.0
This commit is contained in:
Will Dietz
parent
e78511743e
commit
3f8b78a84d
1 changed files with 276 additions and 144 deletions
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@ -1,7 +1,7 @@
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/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++
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| | |__ | | | | | | version 3.4.0
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| | |__ | | | | | | version 3.5.0
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|_____|_____|_____|_|___| https://github.com/nlohmann/json
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Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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@ -31,7 +31,7 @@ SOFTWARE.
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#define NLOHMANN_JSON_HPP
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#define NLOHMANN_JSON_VERSION_MAJOR 3
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#define NLOHMANN_JSON_VERSION_MINOR 4
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#define NLOHMANN_JSON_VERSION_MINOR 5
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#define NLOHMANN_JSON_VERSION_PATCH 0
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#include <algorithm> // all_of, find, for_each
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@ -41,7 +41,7 @@ SOFTWARE.
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#include <functional> // hash, less
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#include <initializer_list> // initializer_list
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#include <iosfwd> // istream, ostream
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#include <iterator> // iterator_traits, random_access_iterator_tag
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#include <iterator> // random_access_iterator_tag
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#include <numeric> // accumulate
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#include <string> // string, stoi, to_string
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#include <utility> // declval, forward, move, pair, swap
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@ -324,12 +324,10 @@ constexpr T static_const<T>::value;
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// #include <nlohmann/json_fwd.hpp>
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// #include <nlohmann/detail/meta/cpp_future.hpp>
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// #include <nlohmann/detail/meta/detected.hpp>
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// #include <nlohmann/detail/iterators/iterator_traits.hpp>
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#include <type_traits>
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#include <iterator> // random_access_iterator_tag
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// #include <nlohmann/detail/meta/void_t.hpp>
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@ -346,6 +344,63 @@ template <typename ...Ts> using void_t = typename make_void<Ts...>::type;
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} // namespace detail
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} // namespace nlohmann
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// #include <nlohmann/detail/meta/cpp_future.hpp>
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namespace nlohmann
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{
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namespace detail
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{
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template <typename It, typename = void>
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struct iterator_types {};
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template <typename It>
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struct iterator_types <
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It,
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void_t<typename It::difference_type, typename It::value_type, typename It::pointer,
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typename It::reference, typename It::iterator_category >>
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{
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using difference_type = typename It::difference_type;
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using value_type = typename It::value_type;
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using pointer = typename It::pointer;
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using reference = typename It::reference;
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using iterator_category = typename It::iterator_category;
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};
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// This is required as some compilers implement std::iterator_traits in a way that
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// doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341.
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template <typename T, typename = void>
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struct iterator_traits
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{
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};
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template <typename T>
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struct iterator_traits < T, enable_if_t < !std::is_pointer<T>::value >>
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: iterator_types<T>
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{
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};
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template <typename T>
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struct iterator_traits<T*, enable_if_t<std::is_object<T>::value>>
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{
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using iterator_category = std::random_access_iterator_tag;
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using value_type = T;
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using difference_type = ptrdiff_t;
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using pointer = T*;
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using reference = T&;
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};
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}
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}
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// #include <nlohmann/detail/meta/cpp_future.hpp>
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// #include <nlohmann/detail/meta/detected.hpp>
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#include <type_traits>
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// #include <nlohmann/detail/meta/void_t.hpp>
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// http://en.cppreference.com/w/cpp/experimental/is_detected
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namespace nlohmann
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@ -522,10 +577,10 @@ template <typename T, typename = void>
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struct is_iterator_traits : std::false_type {};
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template <typename T>
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struct is_iterator_traits<std::iterator_traits<T>>
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struct is_iterator_traits<iterator_traits<T>>
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{
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private:
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using traits = std::iterator_traits<T>;
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using traits = iterator_traits<T>;
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public:
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static constexpr auto value =
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@ -642,7 +697,7 @@ struct is_compatible_array_type_impl <
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// Therefore it is detected as a CompatibleArrayType.
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// The real fix would be to have an Iterable concept.
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not is_iterator_traits<
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std::iterator_traits<CompatibleArrayType>>::value >>
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iterator_traits<CompatibleArrayType>>::value >>
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{
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static constexpr bool value =
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std::is_constructible<BasicJsonType,
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@ -679,7 +734,7 @@ struct is_constructible_array_type_impl <
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// Therefore it is detected as a ConstructibleArrayType.
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// The real fix would be to have an Iterable concept.
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not is_iterator_traits <
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std::iterator_traits<ConstructibleArrayType >>::value and
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iterator_traits<ConstructibleArrayType >>::value and
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(std::is_same<typename ConstructibleArrayType::value_type, typename BasicJsonType::array_t::value_type>::value or
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has_from_json<BasicJsonType,
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@ -1594,105 +1649,107 @@ constexpr const auto& from_json = detail::static_const<detail::from_json_fn>::va
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#include <cstddef> // size_t
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#include <string> // string, to_string
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#include <iterator> // input_iterator_tag
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#include <tuple> // tuple_size, get, tuple_element
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// #include <nlohmann/detail/value_t.hpp>
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// #include <nlohmann/detail/meta/type_traits.hpp>
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namespace nlohmann
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{
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namespace detail
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{
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template <typename IteratorType> class iteration_proxy_value
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{
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public:
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using difference_type = std::ptrdiff_t;
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using value_type = iteration_proxy_value;
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using pointer = value_type * ;
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using reference = value_type & ;
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using iterator_category = std::input_iterator_tag;
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private:
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/// the iterator
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IteratorType anchor;
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/// an index for arrays (used to create key names)
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std::size_t array_index = 0;
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/// last stringified array index
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mutable std::size_t array_index_last = 0;
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/// a string representation of the array index
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mutable std::string array_index_str = "0";
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/// an empty string (to return a reference for primitive values)
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const std::string empty_str = "";
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public:
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explicit iteration_proxy_value(IteratorType it) noexcept : anchor(it) {}
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/// dereference operator (needed for range-based for)
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iteration_proxy_value& operator*()
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{
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return *this;
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}
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/// increment operator (needed for range-based for)
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iteration_proxy_value& operator++()
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{
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++anchor;
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++array_index;
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return *this;
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}
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/// equality operator (needed for InputIterator)
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bool operator==(const iteration_proxy_value& o) const noexcept
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{
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return anchor == o.anchor;
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}
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/// inequality operator (needed for range-based for)
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bool operator!=(const iteration_proxy_value& o) const noexcept
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{
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return anchor != o.anchor;
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}
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/// return key of the iterator
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const std::string& key() const
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{
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assert(anchor.m_object != nullptr);
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switch (anchor.m_object->type())
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{
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// use integer array index as key
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case value_t::array:
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{
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if (array_index != array_index_last)
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{
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array_index_str = std::to_string(array_index);
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array_index_last = array_index;
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}
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return array_index_str;
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}
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// use key from the object
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case value_t::object:
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return anchor.key();
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// use an empty key for all primitive types
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default:
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return empty_str;
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}
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}
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/// return value of the iterator
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typename IteratorType::reference value() const
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{
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return anchor.value();
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}
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};
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/// proxy class for the items() function
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template<typename IteratorType> class iteration_proxy
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{
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private:
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/// helper class for iteration
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class iteration_proxy_internal
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{
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public:
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using difference_type = std::ptrdiff_t;
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using value_type = iteration_proxy_internal;
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using pointer = iteration_proxy_internal*;
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using reference = iteration_proxy_internal&;
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using iterator_category = std::input_iterator_tag;
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private:
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/// the iterator
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IteratorType anchor;
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/// an index for arrays (used to create key names)
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std::size_t array_index = 0;
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/// last stringified array index
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mutable std::size_t array_index_last = 0;
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/// a string representation of the array index
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mutable std::string array_index_str = "0";
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/// an empty string (to return a reference for primitive values)
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const std::string empty_str = "";
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public:
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explicit iteration_proxy_internal(IteratorType it) noexcept : anchor(it) {}
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/// dereference operator (needed for range-based for)
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iteration_proxy_internal& operator*()
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{
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return *this;
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}
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/// increment operator (needed for range-based for)
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iteration_proxy_internal& operator++()
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{
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++anchor;
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++array_index;
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return *this;
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}
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/// equality operator (needed for InputIterator)
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bool operator==(const iteration_proxy_internal& o) const noexcept
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{
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return anchor == o.anchor;
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}
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/// inequality operator (needed for range-based for)
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bool operator!=(const iteration_proxy_internal& o) const noexcept
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{
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return anchor != o.anchor;
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}
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/// return key of the iterator
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const std::string& key() const
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{
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assert(anchor.m_object != nullptr);
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switch (anchor.m_object->type())
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{
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// use integer array index as key
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case value_t::array:
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{
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if (array_index != array_index_last)
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{
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array_index_str = std::to_string(array_index);
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array_index_last = array_index;
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}
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return array_index_str;
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}
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// use key from the object
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case value_t::object:
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return anchor.key();
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// use an empty key for all primitive types
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default:
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return empty_str;
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}
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}
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/// return value of the iterator
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typename IteratorType::reference value() const
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{
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return anchor.value();
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}
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};
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/// the container to iterate
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typename IteratorType::reference container;
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@ -1702,20 +1759,55 @@ template<typename IteratorType> class iteration_proxy
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: container(cont) {}
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/// return iterator begin (needed for range-based for)
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iteration_proxy_internal begin() noexcept
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iteration_proxy_value<IteratorType> begin() noexcept
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{
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return iteration_proxy_internal(container.begin());
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return iteration_proxy_value<IteratorType>(container.begin());
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}
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/// return iterator end (needed for range-based for)
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iteration_proxy_internal end() noexcept
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iteration_proxy_value<IteratorType> end() noexcept
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{
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return iteration_proxy_internal(container.end());
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return iteration_proxy_value<IteratorType>(container.end());
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}
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};
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// Structured Bindings Support
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// For further reference see https://blog.tartanllama.xyz/structured-bindings/
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// And see https://github.com/nlohmann/json/pull/1391
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template <std::size_t N, typename IteratorType, enable_if_t<N == 0, int> = 0>
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auto get(const nlohmann::detail::iteration_proxy_value<IteratorType>& i) -> decltype(i.key())
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{
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return i.key();
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}
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// Structured Bindings Support
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// For further reference see https://blog.tartanllama.xyz/structured-bindings/
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// And see https://github.com/nlohmann/json/pull/1391
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template <std::size_t N, typename IteratorType, enable_if_t<N == 1, int> = 0>
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auto get(const nlohmann::detail::iteration_proxy_value<IteratorType>& i) -> decltype(i.value())
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{
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return i.value();
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}
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} // namespace detail
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} // namespace nlohmann
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// The Addition to the STD Namespace is required to add
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// Structured Bindings Support to the iteration_proxy_value class
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// For further reference see https://blog.tartanllama.xyz/structured-bindings/
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// And see https://github.com/nlohmann/json/pull/1391
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namespace std
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{
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template <typename IteratorType>
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class tuple_size<::nlohmann::detail::iteration_proxy_value<IteratorType>>
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: public std::integral_constant<std::size_t, 2> {};
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template <std::size_t N, typename IteratorType>
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class tuple_element<N, ::nlohmann::detail::iteration_proxy_value<IteratorType >>
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{
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public:
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using type = decltype(
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get<N>(std::declval <
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::nlohmann::detail::iteration_proxy_value<IteratorType >> ()));
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};
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}
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namespace nlohmann
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{
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@ -1994,9 +2086,9 @@ void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
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template <
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typename BasicJsonType, typename T, std::size_t N,
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enable_if_t<not std::is_constructible<typename BasicJsonType::string_t,
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const T (&)[N]>::value,
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const T(&)[N]>::value,
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int> = 0 >
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void to_json(BasicJsonType& j, const T (&arr)[N])
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void to_json(BasicJsonType& j, const T(&arr)[N])
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{
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external_constructor<value_t::array>::construct(j, arr);
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}
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@ -2004,21 +2096,21 @@ void to_json(BasicJsonType& j, const T (&arr)[N])
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template<typename BasicJsonType, typename... Args>
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void to_json(BasicJsonType& j, const std::pair<Args...>& p)
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{
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j = {p.first, p.second};
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j = { p.first, p.second };
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}
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// for https://github.com/nlohmann/json/pull/1134
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template<typename BasicJsonType, typename T,
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enable_if_t<std::is_same<T, typename iteration_proxy<typename BasicJsonType::iterator>::iteration_proxy_internal>::value, int> = 0>
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template < typename BasicJsonType, typename T,
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enable_if_t<std::is_same<T, iteration_proxy_value<typename BasicJsonType::iterator>>::value, int> = 0>
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void to_json(BasicJsonType& j, const T& b)
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{
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j = {{b.key(), b.value()}};
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j = { {b.key(), b.value()} };
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}
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template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
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void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<Idx...> /*unused*/)
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{
|
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j = {std::get<Idx>(t)...};
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j = { std::get<Idx>(t)... };
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}
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|
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template<typename BasicJsonType, typename... Args>
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@ -2058,6 +2150,7 @@ constexpr const auto& to_json = detail::static_const<detail::to_json_fn>::value;
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#include <string> // string, char_traits
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#include <type_traits> // enable_if, is_base_of, is_pointer, is_integral, remove_pointer
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#include <utility> // pair, declval
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#include <cstdio> //FILE *
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// #include <nlohmann/detail/macro_scope.hpp>
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|
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@ -2094,6 +2187,27 @@ struct input_adapter_protocol
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/// a type to simplify interfaces
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using input_adapter_t = std::shared_ptr<input_adapter_protocol>;
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|
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/*!
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Input adapter for stdio file access. This adapter read only 1 byte and do not use any
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buffer. This adapter is a very low level adapter.
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*/
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class file_input_adapter : public input_adapter_protocol
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{
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public:
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explicit file_input_adapter(std::FILE* f) noexcept
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: m_file(f)
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{}
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|
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std::char_traits<char>::int_type get_character() noexcept override
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{
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return std::fgetc(m_file);
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}
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private:
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/// the file pointer to read from
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std::FILE* m_file;
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};
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|
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|
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/*!
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Input adapter for a (caching) istream. Ignores a UFT Byte Order Mark at
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beginning of input. Does not support changing the underlying std::streambuf
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@ -2109,8 +2223,8 @@ class input_stream_adapter : public input_adapter_protocol
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~input_stream_adapter() override
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{
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// clear stream flags; we use underlying streambuf I/O, do not
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// maintain ifstream flags
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is.clear();
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// maintain ifstream flags, except eof
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is.clear(is.rdstate() & std::ios::eofbit);
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}
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explicit input_stream_adapter(std::istream& i)
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|
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@ -2128,7 +2242,13 @@ class input_stream_adapter : public input_adapter_protocol
|
|||
// end up as the same value, eg. 0xFFFFFFFF.
|
||||
std::char_traits<char>::int_type get_character() override
|
||||
{
|
||||
return sb.sbumpc();
|
||||
auto res = sb.sbumpc();
|
||||
// set eof manually, as we don't use the istream interface.
|
||||
if (res == EOF)
|
||||
{
|
||||
is.clear(is.rdstate() | std::ios::eofbit);
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
private:
|
||||
|
|
@ -2336,7 +2456,8 @@ class input_adapter
|
|||
{
|
||||
public:
|
||||
// native support
|
||||
|
||||
input_adapter(std::FILE* file)
|
||||
: ia(std::make_shared<file_input_adapter>(file)) {}
|
||||
/// input adapter for input stream
|
||||
input_adapter(std::istream& i)
|
||||
: ia(std::make_shared<input_stream_adapter>(i)) {}
|
||||
|
|
@ -2380,7 +2501,7 @@ class input_adapter
|
|||
/// input adapter for iterator range with contiguous storage
|
||||
template<class IteratorType,
|
||||
typename std::enable_if<
|
||||
std::is_same<typename std::iterator_traits<IteratorType>::iterator_category, std::random_access_iterator_tag>::value,
|
||||
std::is_same<typename iterator_traits<IteratorType>::iterator_category, std::random_access_iterator_tag>::value,
|
||||
int>::type = 0>
|
||||
input_adapter(IteratorType first, IteratorType last)
|
||||
{
|
||||
|
|
@ -2399,7 +2520,7 @@ class input_adapter
|
|||
|
||||
// assertion to check that each element is 1 byte long
|
||||
static_assert(
|
||||
sizeof(typename std::iterator_traits<IteratorType>::value_type) == 1,
|
||||
sizeof(typename iterator_traits<IteratorType>::value_type) == 1,
|
||||
"each element in the iterator range must have the size of 1 byte");
|
||||
|
||||
const auto len = static_cast<size_t>(std::distance(first, last));
|
||||
|
|
@ -2423,7 +2544,7 @@ class input_adapter
|
|||
/// input adapter for contiguous container
|
||||
template<class ContiguousContainer, typename
|
||||
std::enable_if<not std::is_pointer<ContiguousContainer>::value and
|
||||
std::is_base_of<std::random_access_iterator_tag, typename std::iterator_traits<decltype(std::begin(std::declval<ContiguousContainer const>()))>::iterator_category>::value,
|
||||
std::is_base_of<std::random_access_iterator_tag, typename iterator_traits<decltype(std::begin(std::declval<ContiguousContainer const>()))>::iterator_category>::value,
|
||||
int>::type = 0>
|
||||
input_adapter(const ContiguousContainer& c)
|
||||
: input_adapter(std::begin(c), std::end(c)) {}
|
||||
|
|
@ -3806,7 +3927,7 @@ scan_number_done:
|
|||
{
|
||||
// escape control characters
|
||||
char cs[9];
|
||||
snprintf(cs, 9, "<U+%.4X>", static_cast<unsigned char>(c));
|
||||
(std::snprintf)(cs, 9, "<U+%.4X>", static_cast<unsigned char>(c));
|
||||
result += cs;
|
||||
}
|
||||
else
|
||||
|
|
@ -5486,24 +5607,21 @@ namespace detail
|
|||
{
|
||||
// forward declare, to be able to friend it later on
|
||||
template<typename IteratorType> class iteration_proxy;
|
||||
template<typename IteratorType> class iteration_proxy_value;
|
||||
|
||||
/*!
|
||||
@brief a template for a bidirectional iterator for the @ref basic_json class
|
||||
|
||||
This class implements a both iterators (iterator and const_iterator) for the
|
||||
@ref basic_json class.
|
||||
|
||||
@note An iterator is called *initialized* when a pointer to a JSON value has
|
||||
been set (e.g., by a constructor or a copy assignment). If the iterator is
|
||||
default-constructed, it is *uninitialized* and most methods are undefined.
|
||||
**The library uses assertions to detect calls on uninitialized iterators.**
|
||||
|
||||
@requirement The class satisfies the following concept requirements:
|
||||
-
|
||||
[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator):
|
||||
The iterator that can be moved can be moved in both directions (i.e.
|
||||
incremented and decremented).
|
||||
|
||||
@since version 1.0.0, simplified in version 2.0.9, change to bidirectional
|
||||
iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593)
|
||||
*/
|
||||
|
|
@ -5514,6 +5632,7 @@ class iter_impl
|
|||
friend iter_impl<typename std::conditional<std::is_const<BasicJsonType>::value, typename std::remove_const<BasicJsonType>::type, const BasicJsonType>::type>;
|
||||
friend BasicJsonType;
|
||||
friend iteration_proxy<iter_impl>;
|
||||
friend iteration_proxy_value<iter_impl>;
|
||||
|
||||
using object_t = typename BasicJsonType::object_t;
|
||||
using array_t = typename BasicJsonType::array_t;
|
||||
|
|
@ -6080,8 +6199,7 @@ class iter_impl
|
|||
internal_iterator<typename std::remove_const<BasicJsonType>::type> m_it;
|
||||
};
|
||||
} // namespace detail
|
||||
} // namespace nlohmann
|
||||
|
||||
} // namespace nlohmann
|
||||
// #include <nlohmann/detail/iterators/iteration_proxy.hpp>
|
||||
|
||||
// #include <nlohmann/detail/iterators/json_reverse_iterator.hpp>
|
||||
|
|
@ -6576,7 +6694,7 @@ class binary_reader
|
|||
|
||||
case 0x08: // boolean
|
||||
{
|
||||
return sax->boolean(static_cast<bool>(get()));
|
||||
return sax->boolean(get() != 0);
|
||||
}
|
||||
|
||||
case 0x0A: // null
|
||||
|
|
@ -6599,7 +6717,7 @@ class binary_reader
|
|||
default: // anything else not supported (yet)
|
||||
{
|
||||
char cr[3];
|
||||
snprintf(cr, sizeof(cr), "%.2hhX", static_cast<unsigned char>(element_type));
|
||||
(std::snprintf)(cr, sizeof(cr), "%.2hhX", static_cast<unsigned char>(element_type));
|
||||
return sax->parse_error(element_type_parse_position, std::string(cr), parse_error::create(114, element_type_parse_position, "Unsupported BSON record type 0x" + std::string(cr)));
|
||||
}
|
||||
}
|
||||
|
|
@ -6635,7 +6753,10 @@ class binary_reader
|
|||
|
||||
if (not is_array)
|
||||
{
|
||||
sax->key(key);
|
||||
if (not sax->key(key))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
if (JSON_UNLIKELY(not parse_bson_element_internal(element_type, element_type_parse_position)))
|
||||
|
|
@ -8253,7 +8374,7 @@ class binary_reader
|
|||
std::string get_token_string() const
|
||||
{
|
||||
char cr[3];
|
||||
snprintf(cr, 3, "%.2hhX", static_cast<unsigned char>(current));
|
||||
(std::snprintf)(cr, 3, "%.2hhX", static_cast<unsigned char>(current));
|
||||
return std::string{cr};
|
||||
}
|
||||
|
||||
|
|
@ -11134,15 +11255,15 @@ class serializer
|
|||
{
|
||||
if (codepoint <= 0xFFFF)
|
||||
{
|
||||
std::snprintf(string_buffer.data() + bytes, 7, "\\u%04x",
|
||||
static_cast<uint16_t>(codepoint));
|
||||
(std::snprintf)(string_buffer.data() + bytes, 7, "\\u%04x",
|
||||
static_cast<uint16_t>(codepoint));
|
||||
bytes += 6;
|
||||
}
|
||||
else
|
||||
{
|
||||
std::snprintf(string_buffer.data() + bytes, 13, "\\u%04x\\u%04x",
|
||||
static_cast<uint16_t>(0xD7C0 + (codepoint >> 10)),
|
||||
static_cast<uint16_t>(0xDC00 + (codepoint & 0x3FF)));
|
||||
(std::snprintf)(string_buffer.data() + bytes, 13, "\\u%04x\\u%04x",
|
||||
static_cast<uint16_t>(0xD7C0 + (codepoint >> 10)),
|
||||
static_cast<uint16_t>(0xDC00 + (codepoint & 0x3FF)));
|
||||
bytes += 12;
|
||||
}
|
||||
}
|
||||
|
|
@ -11178,7 +11299,7 @@ class serializer
|
|||
case error_handler_t::strict:
|
||||
{
|
||||
std::string sn(3, '\0');
|
||||
snprintf(&sn[0], sn.size(), "%.2X", byte);
|
||||
(std::snprintf)(&sn[0], sn.size(), "%.2X", byte);
|
||||
JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + sn));
|
||||
}
|
||||
|
||||
|
|
@ -11259,7 +11380,7 @@ class serializer
|
|||
case error_handler_t::strict:
|
||||
{
|
||||
std::string sn(3, '\0');
|
||||
snprintf(&sn[0], sn.size(), "%.2X", static_cast<uint8_t>(s.back()));
|
||||
(std::snprintf)(&sn[0], sn.size(), "%.2X", static_cast<uint8_t>(s.back()));
|
||||
JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + sn));
|
||||
}
|
||||
|
||||
|
|
@ -11378,7 +11499,7 @@ class serializer
|
|||
static constexpr auto d = std::numeric_limits<number_float_t>::max_digits10;
|
||||
|
||||
// the actual conversion
|
||||
std::ptrdiff_t len = snprintf(number_buffer.data(), number_buffer.size(), "%.*g", d, x);
|
||||
std::ptrdiff_t len = (std::snprintf)(number_buffer.data(), number_buffer.size(), "%.*g", d, x);
|
||||
|
||||
// negative value indicates an error
|
||||
assert(len > 0);
|
||||
|
|
@ -13208,7 +13329,7 @@ class basic_json
|
|||
object = nullptr; // silence warning, see #821
|
||||
if (JSON_UNLIKELY(t == value_t::null))
|
||||
{
|
||||
JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.4.0")); // LCOV_EXCL_LINE
|
||||
JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.5.0")); // LCOV_EXCL_LINE
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
|
@ -16599,9 +16720,20 @@ class basic_json
|
|||
Range-based for loop with `items()` function:
|
||||
|
||||
@code{cpp}
|
||||
for (auto it : j_object.items())
|
||||
for (auto& el : j_object.items())
|
||||
{
|
||||
std::cout << "key: " << it.key() << ", value:" << it.value() << '\n';
|
||||
std::cout << "key: " << el.key() << ", value:" << el.value() << '\n';
|
||||
}
|
||||
@endcode
|
||||
|
||||
The `items()` function also allows to use
|
||||
[structured bindings](https://en.cppreference.com/w/cpp/language/structured_binding)
|
||||
(C++17):
|
||||
|
||||
@code{cpp}
|
||||
for (auto& [key, val] : j_object.items())
|
||||
{
|
||||
std::cout << "key: " << key << ", value:" << val << '\n';
|
||||
}
|
||||
@endcode
|
||||
|
||||
|
|
@ -16619,7 +16751,7 @@ class basic_json
|
|||
|
||||
@complexity Constant.
|
||||
|
||||
@since version 3.1.0.
|
||||
@since version 3.1.0, structured bindings support since 3.5.0.
|
||||
*/
|
||||
iteration_proxy<iterator> items() noexcept
|
||||
{
|
||||
|
|
@ -20110,7 +20242,7 @@ class basic_json
|
|||
Thereby, `Target` is the current object; that is, the patch is applied to
|
||||
the current value.
|
||||
|
||||
@param[in] patch the patch to apply
|
||||
@param[in] apply_patch the patch to apply
|
||||
|
||||
@complexity Linear in the lengths of @a patch.
|
||||
|
||||
|
|
@ -20122,15 +20254,15 @@ class basic_json
|
|||
|
||||
@since version 3.0.0
|
||||
*/
|
||||
void merge_patch(const basic_json& patch)
|
||||
void merge_patch(const basic_json& apply_patch)
|
||||
{
|
||||
if (patch.is_object())
|
||||
if (apply_patch.is_object())
|
||||
{
|
||||
if (not is_object())
|
||||
{
|
||||
*this = object();
|
||||
}
|
||||
for (auto it = patch.begin(); it != patch.end(); ++it)
|
||||
for (auto it = apply_patch.begin(); it != apply_patch.end(); ++it)
|
||||
{
|
||||
if (it.value().is_null())
|
||||
{
|
||||
|
|
@ -20144,7 +20276,7 @@ class basic_json
|
|||
}
|
||||
else
|
||||
{
|
||||
*this = patch;
|
||||
*this = apply_patch;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue