Class Buffer

cpp-subprocess/subprocess.hpp:1057–1083

! * class: Buffer * This class is a very thin wrapper around std::vector * This is basically used to determine the length of the actual * data stored inside the dynamically resized vector. * * This is what is returned as the output to communicate and check_output * functions, so, users must know about this class. * * OutBuffer and ErrBuffer are just different typedefs to this class.

 * OutBuffer and ErrBuffer are just different typedefs to this class.
 */
class Buffer
{
public:
  Buffer() {}
  explicit Buffer(size_t cap) { buf.resize(cap); }
  void add_cap(size_t cap) { buf.resize(cap); }

#if 0
  Buffer(const Buffer& other):
    buf(other.buf),
    length(other.length)
  {
    std::cout << "COPY" << std::endl;
  }

  Buffer(Buffer&& other):
    buf(std::move(other.buf)),
    length(other.length)
  {
    std::cout << "MOVE" << std::endl;
  }
#endif

public:
  std::vector<char> buf;
  size_t length = 0;
};

// Buffer for storing output written to output fd
using OutBuffer = Buffer;