Squashed 'external/json/' content from commit 9cca280a4

git-subtree-dir: external/json
git-subtree-split: 9cca280a4d0ccf0c08f47a99aa71d1b0e52f8d03

docs/examples/json_pointer__operator_string_t.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+#include <nlohmann/json.hpp>
+
+using json = nlohmann::json;
+
+int main()
+{
+    // different JSON Pointers
+    json::json_pointer ptr1("/foo/0");
+    json::json_pointer ptr2("/a~1b");
+
+    // implicit conversion to string
+    std::string s;
+    s += ptr1;
+    s += "\n";
+    s += ptr2;
+
+    std::cout << s << std::endl;
+}