bintoascii, asciitobin file

void BinToAscFile(const std::string &binfile,const std::string &txtfile)
{

    {
        std::ifstream infile( binfile, std::ios::binary );
        std::ofstream outfile(txtfile);
        unsigned char v ;

        char temp[4];
        ZeroMemory(temp,4);
        while( infile.read( reinterpret_cast<char*>(&v), sizeof(v) ) )
        {
            sprintf(temp,"%02x",v);
            outfile << temp << ' ' ;
        }
        outfile << '\n' ;

    }
}
void AscToBinFile(const std::string &txtfile,const std::string &binfile)
{
    {
        std::vector<unsigned char> seq ;
        {
            std::ifstream file(txtfile) ;
            char temp[4];
            while( !file.eof())
            {
                file >> temp;
                unsigned char c = strtol(temp,NULL,16);
                seq.push_back((unsigned char)c) ;
            }

        }

        {
            std::ofstream file( binfile, std::ios::binary ) ;
            for( unsigned char v : seq ) file.write( reinterpret_cast<const char*>(&v), sizeof(v) ) ;
        }


    }

}