Revert "remove external libraries from main branch"protocol-modeling

This reverts commit 0558244645611f314f47e0fa427f7323ce253eaf.

1 files changed, 25 insertions, 0 deletions

diff --git a/include/lib/modernjson/detail/iterators/internal_iterator.hpp b/include/lib/modernjson/detail/iterators/internal_iterator.hpp
new file mode 100644
index 0000000..e1c12a8
--- /dev/null
+++ b/include/lib/modernjson/detail/iterators/internal_iterator.hpp
@@ -0,0 +1,25 @@
+#pragma once
+
+#include <lib/modernjson/detail/iterators/primitive_iterator.hpp>
+
+namespace nlohmann
+{
+namespace detail
+{
+/*!
+@brief an iterator value
+
+@note This structure could easily be a union, but MSVC currently does not allow
+unions members with complex constructors, see https://github.com/nlohmann/json/pull/105.
+*/
+template<typename BasicJsonType> struct internal_iterator
+{
+    /// iterator for JSON objects
+    typename BasicJsonType::object_t::iterator object_iterator {};
+    /// iterator for JSON arrays
+    typename BasicJsonType::array_t::iterator array_iterator {};
+    /// generic iterator for all other types
+    primitive_iterator_t primitive_iterator {};
+};
+}  // namespace detail
+}  // namespace nlohmann