can't use `boost::bind` as completion token

[diggit]

Hi, I am trying to pass std::bind as completion token to async bulk read. My inspiration is this boost example. As I am total asio noob, I am quite lost. Do you know what could be the issue?

class Pump : public boost::enable_shared_from_this<Pump> {
public:
    std::array<std::byte, 512> buffer {};

    void start() {
        boost::asio::async_read(
            source,
            boost::asio::buffer(buffer),
            boost::bind(
                &Pump::handle_read, shared_from_this(),
                boost::asio::placeholders::error,
                boost::asio::placeholders::bytes_transferred
            )
        );
    }

  private:
    Pump(std::deque<std::byte> &sink, usb_asio::usb_in_bulk_transfer &source, const unsigned int id) :
        sink(sink),
        source(source),
        id(id)
        {}

    void handle_read(boost::system::error_code error_code, std::size_t bytes_read) {
        assert(error_code);
        if (bytes_read) {
            sink.insert(sink.end(), buffer.begin(), buffer.begin()+bytes_read);
        }
        start();
    }

    std::deque<std::byte> &sink;
    usb_asio::usb_in_bulk_transfer &source;
    unsigned int id {};
};
[error.txt](https://github.com/MiSo1289/usb-asio/files/10483346/error.txt)

[diggit]

removing forward from here https://github.com/MiSo1289/usb-asio/blob/eb10616677d9f9037bb6d7f683bfd94f8fb8a506/include/usb_asio/usb_transfer.hpp#L580 solves the issue. Though, I am not sure it that's the right way.

[MiSo1289]

removing forward from here

https://github.com/MiSo1289/usb-asio/blob/eb10616677d9f9037bb6d7f683bfd94f8fb8a506/include/usb_asio/usb_transfer.hpp#L580

solves the issue. Though, I am not sure it that's the right way.

You are correct, the forward should not be there