packUnpackArry

#include "pch.h"
#include <iostream>

using namespace std;


void packArray(void* src, uint8_t* dst, int baseShift)
{
    for (int i = 0, bytes=baseShift; i < 20; i++)
    {
        if (i % 4 == 0 and i >0) bytes +=4;
        dst[bytes++] = ((uint8_t*)src)[i];
    }
}

void unpackArray(uint8_t* src, void* dst, int baseShift)
{
    for (int i = 0, bytes=baseShift; i < 20; i++)
    {
        if (i % 4 == 0 and i >0) bytes +=4;
        ((uint8_t*)dst)[i] = src[bytes++];
    }
}

int main()
{
    int* arrI = new int[5] { 1,2,3,4,5 };
    float* arrF = new float[5] { 0.01,0.02,0.03,0.04,0.05 };
    uint8_t* arrB = new uint8_t[40];

    packArray(arrI,arrB,0);
    packArray(arrF,arrB,4);

    delete[] arrI;
    delete[] arrF;

    for (int i = 0; i < 10; i++)
    {
        if (i % 2 != 0 and i > 0)
        {
            cout << ((float*)arrB)[i] << endl;
        }
        else
        {
            cout << ((int*)arrB)[i] << endl;
        }
    }

    cout << endl;

    arrI = new int[5] {0};
    arrF = new float[5] {0};

    unpackArray(arrB, arrI, 0);
    unpackArray(arrB, arrF, 4);
    delete[] arrB;

    for (int i = 0; i < 10; i++)
    {
        if (i % 2 != 0 and i > 0)
        {
            cout << arrF[i/2] << endl;
        }
        else
        {
            cout << arrI[i/2] << endl;
        }
    }

    delete[] arrI;
    delete[] arrF;

}