Add operator<<(std::ostream&, const JsonString&)

bblanchon · Nov 24, 2021 · d2b79a1 · d2b79a1
1 parent 5c2fe6b
commit d2b79a1
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/src/ArduinoJson/Strings/String.hpp b/src/ArduinoJson/Strings/String.hpp
@@ -6,6 +6,10 @@
 
 #include <ArduinoJson/Misc/SafeBoolIdiom.hpp>
 
+#if ARDUINOJSON_ENABLE_STD_STREAM
+#  include <ostream>
+#endif
+
 namespace ARDUINOJSON_NAMESPACE {
 
 class String : public SafeBoolIdom<String> {
@@ -61,6 +65,13 @@ class String : public SafeBoolIdom<String> {
     return strcmp(lhs._data, rhs._data) != 0;
   }
 
+#if ARDUINOJSON_ENABLE_STD_STREAM
+  friend std::ostream& operator<<(std::ostream& lhs, const String& rhs) {
+    lhs.write(rhs.c_str(), static_cast<std::streamsize>(rhs.size()));
+    return lhs;
+  }
+#endif
+
  private:
   const char* _data;
   size_t _size;