使用fread（）读入char *缓冲区

Question

I've been working on a compression program for text files that uses a trie and custom bitstrings for each character. The file I'm reading from was written using fwrite(name, wb) , and I have looked over the file (in binary mode) and I have verified that the bits are correct to what they should have been written. The problem I am having is reading this binary file back into a file that can be read.

void read2(string fname, ofstream &outf)
{
    fname += ".mcp";
    outf << endl;
    std::ifstream inf(fname, std::ios::binary);
    std::vector<char> data{
    std::istreambuf_iterator<char>(inf),
    std::istreambuf_iterator<char>() };
    std::cout << "Size: " << data.size() << '\n';
    std::copy(data.begin(), data.end(), std::ostreambuf_iterator<char>(outf));
}

The output for this function (cout) is as follows:

Size: 25 

(using a smaller test file)

The ofstream output should read: 10001110 00000100 01001001 10110001 10011001 00101011 01101000 10010101 01000101 01010001 01111010 01101001 10100110 01000000 01111010 00010111 00000110 10101000 11100000 01000101 11011100 11110011 10010111 10001011 00000000 This is the binary form of the numbers that were read: (sorry its reading it as hex code, I copied it straight from the output file)

c5 bd 04 49 c2 b1 e2 84 a2 2b 68 e2 80 a2 45 51 7a 69 c2 a6 40 7a 17 06 c2 a8 c3 a0 45 c3 9c c3
b3 e2 80 94 e2 80 b9 20  

I used the hex editor plugin for notepad++ to view the bits.

Answer 1

The answer to the question was actually very simple, the ofstream object, outf that I was using to output data to was not opened in binary mode, so I just created a new object in binary mode and output to it and it worked.

void read2(string fname, ofstream &outf)
{
    string fname1 =fname+ ".mcp", outfile="binarycheck";
    std::ifstream inf(fname1, std::ios::binary);
    std::ofstream ouf("binarycheck.txt", std::ios::binary);
    std::vector<unsigned char> data{
    std::istreambuf_iterator<char>(inf),
    std::istreambuf_iterator<char>() };
    std::cout << "Size: " << data.size() << '\n';
    std::copy(data.begin(), data.end(), std::ostreambuf_iterator<char>(ouf));
}