deploy: 4155e2938f

examples/basic_json_document__is_discarded.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+#include <nlohmann/json_view.hpp>
+
+using json_document = nlohmann::json_document;
+
+int main()
+{
+    std::cout << std::boolalpha;
+
+    // with allow_exceptions == false, a parse error produces a discarded
+    // document instead of throwing -- exactly like basic_json::parse()
+    json_document doc = json_document::parse(R"({"a": )", /* allow_exceptions */ false);
+    std::cout << doc.is_discarded() << '\n';
+    std::cout << doc.root().is_discarded() << '\n';
+
+    // a successful parse is never discarded
+    json_document ok = json_document::parse(R"({"a": 1})", false);
+    std::cout << ok.is_discarded() << '\n';
+}