How to decode from stream back to huffman code?

[crookedbard]

In main.cs these lines show how to convert huffman code (vector of bools) to the stream.
But how to convert the stream back to vector of bools?

short r = code.size()%8;
    long bsize = ((code.size()-r)/8);
    
//I am keeping the stream in memory.    
//std::ofstream outfile ("out.huf",std::ofstream::binary);
   std::stringstream outbuff;
    
    unsigned char byte[1];
    unsigned char firstByte[1];
    
    firstByte[0] = 0;
    if((r-(r%4))/4) firstByte[0] |= 1 << 2;
    if(((r%4)-(r%2))/2) firstByte[0] |= 1 << 1;
    if(r%2) firstByte[0] |= 1;    
    
    outfile.write (reinterpret_cast<char *>(firstByte),1);
   
    for(int y=0;y<(bsize+1);y++) { //byte
        byte[0] = 0;
        for (int i=0; i < 8; ++i) { //bit
            if ((8*y+i) <= code.size() && code[8*y+i]) {
                byte[0] |= 1 << i;
            }                  
        }
        outfile.write (reinterpret_cast<char *>(byte),1);
    }

How to decode outfile stream back to vector ?