Merge pull request #439 from jaredgrubb/patch-2

README: adjust boost::optional example
nlohmann · Jan 29, 2017 · affa3bf · affa3bf
2 parents f642934 + f2873e6
commit affa3bf
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -563,7 +563,9 @@ namespace nlohmann {
  }
 
   static void from_json(const json& j, boost::optional<T>& opt) {
-  if (!j.is_null()) {
+  if (j.is_null()) {
+  opt = boost::none;
+  } else {
   opt = j.get<T>(); // same as above, but with 
   // adl_serializer<T>::from_json
   }