1 files changed, 47 insertions, 0 deletions
diff --git a/include/lib/ArduinoJson/Polyfills/type_traits/is_convertible.hpp b/include/lib/ArduinoJson/Polyfills/type_traits/is_convertible.hpp
new file mode 100644
index 0000000..847525a
--- /dev/null
+++ b/include/lib/ArduinoJson/Polyfills/type_traits/is_convertible.hpp
@@ -0,0 +1,47 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright Benoit Blanchon 2014-2021
+// MIT License
+
+#pragma once
+
+#include "declval.hpp"
+
+#ifdef _MSC_VER
+#pragma warning(push)
+// conversion from 'T' to 'To', possible loss of data
+#pragma warning(disable : 4244)
+#endif
+
+// clang-format off
+#ifdef __ICCARM__
+// Suppress IAR Compiler Warning[Pa093]: implicit conversion from floating point to integer
+#pragma diag_suppress=Pa093
+#endif
+// clang-format on
+
+namespace ARDUINOJSON_NAMESPACE {
+
+template <typename From, typename To>
+struct is_convertible {
+ protected:  // <- to avoid GCC's "all member functions in class are private"
+  typedef char Yes[1];
+  typedef char No[2];
+
+  static Yes &probe(To);
+  static No &probe(...);
+
+ public:
+  static const bool value = sizeof(probe(declval<From>())) == sizeof(Yes);
+};
+
+}  // namespace ARDUINOJSON_NAMESPACE
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+// clang-format off
+#ifdef __ICCARM__
+#pragma diag_default=Pa093
+#endif
+// clang-format on