1 files changed, 29 insertions, 0 deletions
diff --git a/include/lib/ArduinoJson/Deserialization/Readers/StdStreamReader.hpp b/include/lib/ArduinoJson/Deserialization/Readers/StdStreamReader.hpp
new file mode 100644
index 0000000..eebaa2c
--- /dev/null
+++ b/include/lib/ArduinoJson/Deserialization/Readers/StdStreamReader.hpp
@@ -0,0 +1,29 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright Benoit Blanchon 2014-2021
+// MIT License
+
+#pragma once
+
+#include <istream>
+
+namespace ARDUINOJSON_NAMESPACE {
+
+template <typename TSource>
+struct Reader<TSource, typename enable_if<
+                           is_base_of<std::istream, TSource>::value>::type> {
+ public:
+  explicit Reader(std::istream& stream) : _stream(&stream) {}
+
+  int read() {
+    return _stream->get();
+  }
+
+  size_t readBytes(char* buffer, size_t length) {
+    _stream->read(buffer, static_cast<std::streamsize>(length));
+    return static_cast<size_t>(_stream->gcount());
+  }
+
+ private:
+  std::istream* _stream;
+};
+}  // namespace ARDUINOJSON_NAMESPACE