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arduino-cli/libraries/ArduinoJson_6.x/ArduinoJson/Memory/Alignment.hpp

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+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2020
+// MIT License
+
+#pragma once
+
+#include <ArduinoJson/Namespace.hpp>
+
+#include <stddef.h>  // size_t
+
+namespace ARDUINOJSON_NAMESPACE {
+
+#if ARDUINOJSON_ENABLE_ALIGNMENT
+
+inline bool isAligned(size_t value) {
+  const size_t mask = sizeof(void *) - 1;
+  size_t addr = value;
+  return (addr & mask) == 0;
+}
+
+inline size_t addPadding(size_t bytes) {
+  const size_t mask = sizeof(void *) - 1;
+  return (bytes + mask) & ~mask;
+}
+
+template <size_t bytes>
+struct AddPadding {
+  static const size_t mask = sizeof(void *) - 1;
+  static const size_t value = (bytes + mask) & ~mask;
+};
+
+#else
+
+inline bool isAligned(size_t) {
+  return true;
+}
+
+inline size_t addPadding(size_t bytes) {
+  return bytes;
+}
+
+template <size_t bytes>
+struct AddPadding {
+  static const size_t value = bytes;
+};
+
+#endif
+
+template <typename T>
+inline bool isAligned(T *ptr) {
+  return isAligned(reinterpret_cast<size_t>(ptr));
+}
+
+template <typename T>
+inline T *addPadding(T *p) {
+  size_t address = addPadding(reinterpret_cast<size_t>(p));
+  return reinterpret_cast<T *>(address);
+}
+
+}  // namespace ARDUINOJSON_NAMESPACE