update ceph source to reef 18.1.2

[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / third_party / nlohmann-json / doc / examples / std_swap.cpp

diff --git a/ceph/src/jaegertracing/opentelemetry-cpp/third_party/nlohmann-json/doc/examples/std_swap.cpp b/ceph/src/jaegertracing/opentelemetry-cpp/third_party/nlohmann-json/doc/examples/std_swap.cpp
new file mode 100644 (file)
index 0000000..36ab3ce
--- /dev/null
+++ b/ceph/src/jaegertracing/opentelemetry-cpp/third_party/nlohmann-json/doc/examples/std_swap.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+#include <iomanip>
+#include <nlohmann/json.hpp>
+
+using json = nlohmann::json;
+
+int main()
+{
+    // create JSON values
+    json j1 = {{"one", 1}, {"two", 2}};
+    json j2 = {1, 2, 4, 8, 16};
+
+    std::cout << "j1 = " << j1 << " | j2 = " << j2 << '\n';
+
+    // swap values
+    std::swap(j1, j2);
+
+    std::cout << "j1 = " << j1 << " | j2 = " << j2 << std::endl;
+}