arduino/libraries/ArduinoJson/test/MsgPackDeserializer/doubleToFloat.cpp
Martin Donnelly e9c94ebfff update
2018-11-13 14:50:48 +00:00

26 lines
698 B
C++

// ArduinoJson - arduinojson.org
// Copyright Benoit Blanchon 2014-2018
// MIT License
#include <ArduinoJson.h>
#include <catch.hpp>
using namespace ARDUINOJSON_NAMESPACE;
template <typename T>
static void check(const char* input, T expected) {
T actual;
uint8_t* f = reinterpret_cast<uint8_t*>(&actual);
const uint8_t* d = reinterpret_cast<const uint8_t*>(input);
doubleToFloat(d, f);
fixEndianess(actual);
CHECK(actual == expected);
}
TEST_CASE("doubleToFloat()") {
check("\x40\x09\x21\xCA\xC0\x83\x12\x6F", 3.1415f);
check("\x00\x00\x00\x00\x00\x00\x00\x00", 0.0f);
check("\x80\x00\x00\x00\x00\x00\x00\x00", -0.0f);
check("\xC0\x5E\xDC\xCC\xCC\xCC\xCC\xCD", -123.45f);
}