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FSFW Update #26

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meierj merged 24 commits from mueller/sw-update into eive/develop 2021-12-15 10:01:34 +01:00
Conversation 0 Commits 24 Files Changed 55 +429 -268
2 changed files with 429 additions and 268 deletions
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108
src/fsfw/serialize/SerializeAdapter.h
View File

@ -21,18 +21,21 @@
class SerializeAdapter {
public:
/***
* This function can be used to serialize a trivial copy-able type or a
* child of SerializeIF.
* @brief Serialize a trivial copy-able type or a child of SerializeIF.
* @details
* The right template to be called is determined in the function itself.
* For objects of non trivial copy-able type this function is almost never
* called by the user directly. Instead helpers for specific types like
* SerialArrayListAdapter or SerialLinkedListAdapter is the right choice here.
* SerialArrayListAdapter or SerialLinkedListAdapter are the right choice here.
*
* @param[in] object Object to serialize, the used type is deduced from this pointer
* @param[in/out] buffer Buffer to serialize into. Will be moved by the function.
* @param[in/out] size Size of current written buffer. Will be incremented by the function.
* @param[in] maxSize Max size of Buffer
* @param[in] streamEndianness Endianness of serialized element as in according to SerializeIF::Endianness
* @param[in] object: Object to serialize, the used type is deduced from this pointer
* @param[in/out] buffer: Pointer to the buffer to serialize into. Buffer position will be
* incremented by the function.
* @param[in/out] size: Pointer to size of current written buffer.
* SIze will be incremented by the function.
* @param[in] maxSize: Max size of Buffer
* @param[in] streamEndianness: Endianness of serialized element as in according to
* SerializeIF::Endianness
* @return
* - @c BUFFER_TOO_SHORT The given buffer in is too short
* - @c RETURN_FAILED Generic Error
@ -46,9 +49,46 @@ public:
return adapter.serialize(object, buffer, size, maxSize,
streamEndianness);
}
/***
* This function can be used to serialize a trivial copy-able type or a child of SerializeIF.
* The right template to be called is determined in the function itself.
* For objects of non trivial copy-able type this function is almost never
* called by the user directly. Instead helpers for specific types like
* SerialArrayListAdapter or SerialLinkedListAdapter are the right choice here.
*
* @param[in] object: Object to serialize, the used type is deduced from this pointer
* @param[in/out] buffer: Buffer to serialize into.
* @param[out] serSize: Serialized size
* @param[in] maxSize: Max size of buffer
* @param[in] streamEndianness: Endianness of serialized element as in according to
* SerializeIF::Endianness
* @return
* - @c BUFFER_TOO_SHORT The given buffer in is too short
* - @c RETURN_FAILED Generic Error
* - @c RETURN_OK Successful serialization
*/
template<typename T>
static ReturnValue_t serialize(const T *object, uint8_t* const buffer, size_t* serSize,
size_t maxSize, SerializeIF::Endianness streamEndianness) {
if(object == nullptr or buffer == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
uint8_t** tempPtr = const_cast<uint8_t**>(&buffer);
size_t tmpSize = 0;
ReturnValue_t result = adapter.serialize(object, tempPtr, &tmpSize, maxSize,
streamEndianness);
if(serSize != nullptr) {
*serSize = tmpSize;
}
return result;
}
/**
* Function to return the serialized size of the object in the pointer.
* May be a trivially copy-able object or a Child of SerializeIF
* @brief Function to return the serialized size of the object in the pointer.
* @details
* May be a trivially copy-able object or a child of SerializeIF.
*
* @param object Pointer to Object
* @return Serialized size of object
@ -58,17 +98,20 @@ public:
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.getSerializedSize(object);
}
/**
* @brief
* Deserializes a object from a given buffer of given size.
* Object Must be trivially copy-able or a child of SerializeIF.
* @brief Deserializes a object from a given buffer of given size.
*
* @details
* Object Must be trivially copy-able or a child of SerializeIF.
* Buffer will be moved to the current read location. Size will be decreased by the function.
*
* @param[in/out] buffer Buffer to deSerialize from. Will be moved by the function.
* @param[in/out] size Remaining size of the buffer to read from. Will be decreased by function.
* @param[in] streamEndianness Endianness as in according to SerializeIF::Endianness
* @param[in] object: Pointer to object to deserialize
* @param[in/out] buffer: Pointer to the buffer to deSerialize from. Buffer position will be
* incremented by the function
* @param[in/out] size: Pointer to remaining size of the buffer to read from.
* Will be decreased by function.
* @param[in] streamEndianness: Endianness as in according to SerializeIF::Endianness
* @return
* - @c STREAM_TOO_SHORT The input stream is too short to deSerialize the object
* - @c TOO_MANY_ELEMENTS The buffer has more inputs than expected
@ -81,6 +124,39 @@ public:
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.deSerialize(object, buffer, size, streamEndianness);
}
/**
* @brief Deserializes a object from a given buffer of given size.
*
* @details
* Object Must be trivially copy-able or a child of SerializeIF.
*
* @param[in] object: Pointer to object to deserialize
* @param[in] buffer: Buffer to deSerialize from
* @param[out] deserSize: Deserialized length
* @param[in] streamEndianness: Endianness as in according to SerializeIF::Endianness
* @return
* - @c STREAM_TOO_SHORT The input stream is too short to deSerialize the object
* - @c TOO_MANY_ELEMENTS The buffer has more inputs than expected
* - @c RETURN_FAILED Generic Error
* - @c RETURN_OK Successful deserialization
*/
template<typename T>
static ReturnValue_t deSerialize(T *object, const uint8_t* buffer,
size_t* deserSize, SerializeIF::Endianness streamEndianness) {
if(object == nullptr or buffer == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
const uint8_t** tempPtr = &buffer;
size_t maxVal = -1;
ReturnValue_t result = adapter.deSerialize(object, tempPtr, &maxVal, streamEndianness);
if(deserSize != nullptr) {
*deserSize = -1 - maxVal;
}
return result;
}
private:
/**
* Internal template to deduce the right function calls at compile time

297
tests/src/fsfw_tests/unit/serialize/TestSerialization.cpp
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@ -3,128 +3,213 @@
#include <catch2/catch_test_macros.hpp>
#include <catch2/catch_approx.hpp>
#include <fsfw/serialize/SerialBufferAdapter.h>
#include <array>
static bool test_value_bool = true;
static uint8_t tv_uint8 {5};
static uint16_t tv_uint16 {283};
static uint32_t tv_uint32 {929221};
static uint64_t tv_uint64 {2929329429};
static bool testBool = true;
static uint8_t tvUint8 {5};
static uint16_t tvUint16 {283};
static uint32_t tvUint32 {929221};
static uint64_t tvUint64 {2929329429};
static int8_t tv_int8 {-16};
static int16_t tv_int16 {-829};
static int32_t tv_int32 {-2312};
static int8_t tvInt8 {-16};
static int16_t tvInt16 {-829};
static int32_t tvInt32 {-2312};
static float tv_float {8.2149214};
static float tv_sfloat = {-922.2321321};
static double tv_double {9.2132142141e8};
static double tv_sdouble {-2.2421e19};
static float tvFloat {8.2149214};
static float tvSfloat = {-922.2321321};
static double tvDouble {9.2132142141e8};
static double tvSdouble {-2.2421e19};
static std::array<uint8_t, 512> test_array;
static std::array<uint8_t, 512> TEST_ARRAY;
TEST_CASE( "Serialization size tests", "[TestSerialization]") {
TEST_CASE( "Serialization size tests", "[SerSizeTest]") {
//REQUIRE(unitTestClass.test_autoserialization() == 0);
REQUIRE(SerializeAdapter::getSerializedSize(&test_value_bool) ==
sizeof(test_value_bool));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_uint8) ==
sizeof(tv_uint8));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_uint16) ==
sizeof(tv_uint16));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_uint32 ) ==
sizeof(tv_uint32));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_uint64) ==
sizeof(tv_uint64));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_int8) ==
sizeof(tv_int8));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_int16) ==
sizeof(tv_int16));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_int32) ==
sizeof(tv_int32));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_float) ==
sizeof(tv_float));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_sfloat) ==
sizeof(tv_sfloat ));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_double) ==
sizeof(tv_double));
REQUIRE(SerializeAdapter::getSerializedSize(&tv_sdouble) ==
sizeof(tv_sdouble));
REQUIRE(SerializeAdapter::getSerializedSize(&testBool) ==
sizeof(testBool));
REQUIRE(SerializeAdapter::getSerializedSize(&tvUint8) ==
sizeof(tvUint8));
REQUIRE(SerializeAdapter::getSerializedSize(&tvUint16) ==
sizeof(tvUint16));
REQUIRE(SerializeAdapter::getSerializedSize(&tvUint32 ) ==
sizeof(tvUint32));
REQUIRE(SerializeAdapter::getSerializedSize(&tvUint64) ==
sizeof(tvUint64));
REQUIRE(SerializeAdapter::getSerializedSize(&tvInt8) ==
sizeof(tvInt8));
REQUIRE(SerializeAdapter::getSerializedSize(&tvInt16) ==
sizeof(tvInt16));
REQUIRE(SerializeAdapter::getSerializedSize(&tvInt32) ==
sizeof(tvInt32));
REQUIRE(SerializeAdapter::getSerializedSize(&tvFloat) ==
sizeof(tvFloat));
REQUIRE(SerializeAdapter::getSerializedSize(&tvSfloat) ==
sizeof(tvSfloat ));
REQUIRE(SerializeAdapter::getSerializedSize(&tvDouble) ==
sizeof(tvDouble));
REQUIRE(SerializeAdapter::getSerializedSize(&tvSdouble) ==
sizeof(tvSdouble));
}
TEST_CASE("Auto Serialize Adapter", "[SerAdapter]") {
size_t serializedSize = 0;
uint8_t * pArray = TEST_ARRAY.data();
TEST_CASE("Auto Serialize Adapter testing", "[single-file]") {
size_t serialized_size = 0;
uint8_t * p_array = test_array.data();
SECTION("SerDe") {
size_t deserSize = 0;
SerializeAdapter::serialize(&testBool, TEST_ARRAY.data(), &deserSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 1);
REQUIRE(TEST_ARRAY[0] == true);
bool readBack = false;
SerializeAdapter::deSerialize(&readBack, TEST_ARRAY.data(), &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 1);
REQUIRE(readBack == true);
SerializeAdapter::serialize(&tvUint8, TEST_ARRAY.data(), &deserSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 1);
REQUIRE(TEST_ARRAY[0] == 5);
uint8_t readBackUint8 = 0;
uint8_t* const testPtr = TEST_ARRAY.data();
uint8_t* const shouldStayConst = testPtr;
SerializeAdapter::deSerialize(&readBackUint8, testPtr, &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(testPtr == shouldStayConst);
REQUIRE(deserSize == 1);
REQUIRE(readBackUint8 == 5);
SerializeAdapter::serialize(&tvUint16, TEST_ARRAY.data(), &deserSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 2);
deserSize = 0;
uint16_t readBackUint16 = 0;
SerializeAdapter::deSerialize(&readBackUint16, TEST_ARRAY.data(), &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 2);
REQUIRE(readBackUint16 == 283);
SECTION("Serializing...") {
SerializeAdapter::serialize(&test_value_bool, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_uint8, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_uint16, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_uint32, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_int8, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_int16, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_int32, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_uint64, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_float, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_double, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_sfloat, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tv_sdouble, &p_array,
&serialized_size, test_array.size(), SerializeIF::Endianness::MACHINE);
REQUIRE (serialized_size == 47);
SerializeAdapter::serialize(&tvUint32, TEST_ARRAY.data(), &deserSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 4);
uint32_t readBackUint32 = 0;
deserSize = 0;
SerializeAdapter::deSerialize(&readBackUint32, TEST_ARRAY.data(), &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 4);
REQUIRE(readBackUint32 == 929221);
SerializeAdapter::serialize(&tvInt16, TEST_ARRAY.data(), &deserSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 2);
int16_t readBackInt16 = 0;
SerializeAdapter::deSerialize(&readBackInt16, TEST_ARRAY.data(), &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(readBackInt16 == -829);
REQUIRE(deserSize == 2);
SerializeAdapter::serialize(&tvFloat, TEST_ARRAY.data(), &deserSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
float readBackFloat = 0.0;
SerializeAdapter::deSerialize(&readBackFloat, TEST_ARRAY.data(), &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(readBackFloat == Catch::Approx(8.214921));
SerializeAdapter::serialize(&tvSdouble, TEST_ARRAY.data(), &deserSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
double readBackSignedDouble = 0.0;
SerializeAdapter::deSerialize(&readBackSignedDouble, TEST_ARRAY.data(), &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(readBackSignedDouble == Catch::Approx(-2.2421e19));
uint8_t testBuf[4] = {1, 2, 3, 4};
SerialBufferAdapter<uint8_t> bufferAdapter(testBuf, sizeof(testBuf));
SerializeAdapter::serialize(&bufferAdapter, TEST_ARRAY.data(), &deserSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 4);
for(uint8_t idx = 0; idx < 4; idx++) {
REQUIRE(TEST_ARRAY[idx] == idx + 1);
}
deserSize = 0;
testBuf[0] = 0;
testBuf[1] = 12;
SerializeAdapter::deSerialize(&bufferAdapter, TEST_ARRAY.data(), &deserSize,
SerializeIF::Endianness::MACHINE);
REQUIRE(deserSize == 4);
for(uint8_t idx = 0; idx < 4; idx++) {
REQUIRE(testBuf[idx] == idx + 1);
}
}
SECTION("Deserializing") {
p_array = test_array.data();
size_t remaining_size = serialized_size;
SerializeAdapter::deSerialize(&test_value_bool,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_uint8,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_uint16,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_uint32,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_int8,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_int16,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_int32,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_uint64,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_float,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_double,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_sfloat,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tv_sdouble,
const_cast<const uint8_t**>(&p_array), &remaining_size, SerializeIF::Endianness::MACHINE);
SECTION("Serialize incrementing") {
SerializeAdapter::serialize(&testBool, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvUint8, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvUint16, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvUint32, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvInt8, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvInt16, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvInt32, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvUint64, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvFloat, &pArray, &serializedSize,
TEST_ARRAY.size(), SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvDouble, &pArray, &serializedSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvSfloat, &pArray, &serializedSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
SerializeAdapter::serialize(&tvSdouble, &pArray, &serializedSize, TEST_ARRAY.size(),
SerializeIF::Endianness::MACHINE);
REQUIRE (serializedSize == 47);
}
REQUIRE(test_value_bool == true);
REQUIRE(tv_uint8 == 5);
REQUIRE(tv_uint16 == 283);
REQUIRE(tv_uint32 == 929221);
REQUIRE(tv_uint64 == 2929329429);
REQUIRE(tv_int8 == -16);
REQUIRE(tv_int16 == -829);
REQUIRE(tv_int32 == -2312);
SECTION("Deserialize decrementing") {
pArray = TEST_ARRAY.data();
size_t remaining_size = serializedSize;
SerializeAdapter::deSerialize(&testBool, const_cast<const uint8_t**>(&pArray),
&remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvUint8, const_cast<const uint8_t**>(&pArray),
&remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvUint16, const_cast<const uint8_t**>(&pArray),
&remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvUint32, const_cast<const uint8_t**>(&pArray),
&remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvInt8, const_cast<const uint8_t**>(&pArray),
&remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvInt16, const_cast<const uint8_t**>(&pArray),
&remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvInt32, const_cast<const uint8_t**>(&pArray),
&remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvUint64,
const_cast<const uint8_t**>(&pArray), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvFloat,
const_cast<const uint8_t**>(&pArray), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvDouble,
const_cast<const uint8_t**>(&pArray), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvSfloat,
const_cast<const uint8_t**>(&pArray), &remaining_size, SerializeIF::Endianness::MACHINE);
SerializeAdapter::deSerialize(&tvSdouble,
const_cast<const uint8_t**>(&pArray), &remaining_size, SerializeIF::Endianness::MACHINE);
REQUIRE(tv_float == Catch::Approx(8.214921));
REQUIRE(tv_double == Catch::Approx(9.2132142141e8));
REQUIRE(tv_sfloat == Catch::Approx(-922.2321321));
REQUIRE(tv_sdouble == Catch::Approx(-2.2421e19));
REQUIRE(testBool == true);
REQUIRE(tvUint8 == 5);
REQUIRE(tvUint16 == 283);
REQUIRE(tvUint32 == 929221);
REQUIRE(tvUint64 == 2929329429);
REQUIRE(tvInt8 == -16);
REQUIRE(tvInt16 == -829);
REQUIRE(tvInt32 == -2312);
REQUIRE(tvFloat == Catch::Approx(8.214921));
REQUIRE(tvDouble == Catch::Approx(9.2132142141e8));
REQUIRE(tvSfloat == Catch::Approx(-922.2321321));
REQUIRE(tvSdouble == Catch::Approx(-2.2421e19));
}
}