Files
thirdparty-ArduinoJson/src/ArduinoJson/MsgPack/endianess.hpp
2018-05-17 13:46:23 +02:00

47 lines
959 B
C++

// ArduinoJson - arduinojson.org
// Copyright Benoit Blanchon 2014-2018
// MIT License
#pragma once
#include "../Polyfills/type_traits.hpp"
namespace ArduinoJson {
namespace Internals {
template <typename T>
inline void swap(T& a, T& b) {
T t(a);
a = b;
b = t;
}
inline void fixEndianess(uint8_t* p, integral_constant<size_t, 8>) {
swap(p[0], p[7]);
swap(p[1], p[6]);
swap(p[2], p[5]);
swap(p[3], p[4]);
}
inline void fixEndianess(uint8_t* p, integral_constant<size_t, 4>) {
swap(p[0], p[3]);
swap(p[1], p[2]);
}
inline void fixEndianess(uint8_t* p, integral_constant<size_t, 2>) {
swap(p[0], p[1]);
}
inline void fixEndianess(uint8_t*, integral_constant<size_t, 1>) {}
template <typename T>
inline void fixEndianess(T& value) {
#if ARDUINOJSON_LITTLE_ENDIAN
fixEndianess(reinterpret_cast<uint8_t*>(&value),
integral_constant<size_t, sizeof(T)>());
#endif
}
} // namespace Internals
} // namespace ArduinoJson