[Global]: loading init

deps/json/docs/examples/get_allocator.cpp

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+#include <iostream>
+#include <nlohmann/json.hpp>
+
+using json = nlohmann::json;
+
+int main()
+{
+    auto alloc = json::get_allocator();
+    using traits_t = std::allocator_traits<decltype(alloc)>;
+
+    json* j = traits_t::allocate(alloc, 1);
+    traits_t::construct(alloc, j, "Hello, world!");
+
+    std::cout << *j << std::endl;
+
+    traits_t::destroy(alloc, j);
+    traits_t::deallocate(alloc, j, 1);
+}