Vfrdtyky

I can't figure out why my code prints out an empty line

I started by echoing hello as hex into a bin file

echo -n -e \x68\x65\x6c\x6c\x6f > myfile.bin

Source code:

#include <iostream>

#include <vector>

#include <cstdio>

#include <cstring>



using namespace std;



struct ProcessFile

 {

    std::vector<uint8_t> fileType;



    //Header

    int cursor = 0;



    ProcessFile(const char *filename);

    void readBytes(uint8_t *data, int numBytes);

};



ProcessFile::ProcessFile (const char *filename) {

    FILE * fp = fopen(filename, "rb");

    fseek(fp, 0, SEEK_END);

    size_t size = ftell(fp);

    fseek(fp, 0, SEEK_SET);

    this->fileType.resize(size);

    fread(&fileType[0], 1, size, fp);

    fclose(fp);

}



void ProcessFile::readBytes(uint8_t *data, int numBytes) {

    memcpy(data, &this->fileType[cursor], numBytes);

    this->cursor += numBytes;

}



int main() {

    uint8_t data[16];

    ProcessFile aFile = ProcessFile("myfile.bin");

    aFile.readBytes(data,16);

    std::cout << data << std::endl;

}

I would expect the uint8_t data array here to contain hello, the vector is filled with zeros. Why is this happening?