How to read a binary file into a vector of unsigned chars

Question

Lately I\'ve been asked to write a function that reads the binary file into the std::vector where BYTE is an unsigned char

Answer 1

std::ifstream stream("mona-lisa.raw", std::ios::in | std::ios::binary);
std::vector contents((std::istreambuf_iterator(stream)), std::istreambuf_iterator());

for(auto i: contents) {
    int value = i;
    std::cout << "data: " << value << std::endl;
}

std::cout << "file size: " << contents.size() << std::endl;