Linkers::X - Let's code in C++ , Daytrade & Daydream :)

Discussion in 'Programming' started by LinkersX, Dec 26, 2017.

  1. There are many reasons not to use std::whatever but you have not made any case for that yet.

    In any case, if you use the iterator concept, I couldn't give care less about what containers you end up using.

    The problem is that this kind of premature optimization-based decision making will percolate through the API and that is what makes me sad. You clearly have passion for the project but it will be a mess because of this kind of decision making.

    If other people have been paying you to algo trade, they have way more money invested in making it fast. For retail traders, it's less relevant.

    Is your mother in law going to trade ticks? fuck no, that's a good way to bankruptcy.
    #41     Dec 27, 2017
  2. LinkersX


    //->silly me :-)))
    xTime time1(replayStartTimeAsMicrosecondsSinceEpoch);
    renko1.replay("", time1, HTML5);
    // to replay xBars container on father in-law's MetaTrader 4
    // for symbol EURUSD as UltimateRenko bar type in the browser as HTML5 charts
    // LOL
    Last edited: Dec 28, 2017
    #42     Dec 28, 2017
  3. LinkersX


    // time1 will be current time now in microseconds since epoch
    xTime time1(xTimeNowMS());
    xSleepMS(50000); // wait 50000 microseconds
    time1.add(xTimeNowMS()); // add another time now in micros
    print (time1.year(0)); //print first element
    print (time1.month(1)); //print second element
    print (time1.MS(1)); //print time1 @ pos 1 microsecond part
    // shift container to the left for 2 positions // container empty after the operation
    print(time1.overflow()); //print the last overflow after shifting 2 x left
    //send time1 container remotely to pops a with message attached
    time1.message("incoming time container pops",;
    // Linkers::X->theNextBigThing; in C++ HFT Event Driven Algorithmic Trading
    Last edited: Dec 28, 2017
    #43     Dec 28, 2017
  4. Honestly, I'm not really impressed.
    #44     Dec 28, 2017
    LinkersX likes this.
  5. sle


    Could you elaborate on this?
    PS. I am trying to improve my C++ since I know it’s ugly
    #45     Dec 28, 2017
  6. LinkersX


    # this code will compile and execute on MQL4, 5 NinjaScript, cAlgo, ACSIL SierraChart
    struct spread1
    double spread;
    xString symbol;
    xSort<spread1> sorted1;
    xQueue<sorted1> sortedQueue;
    sorted1.add(spread1); // add spread to sorted list
    //autosort goes on during every insert
    sorted1.add(spread1); // add sanother spred1 struct to tlist
    sorted1.shiftRight(1); // shift right sort container
    sortedQueue.push(sorted1); // push sorted1 into the queue
    //sending the sorted queue container to nooby_mcnoob computer with Linkers:X installed
    // his SierraChart will do something with it...
    // Linkers::X->andThatsIt;
    #46     Dec 28, 2017
  7. Sure. C++ is ugly to begin with anyway, but I'll do my best:

    The idea is that instead of dealing with classes, you deal with concepts (interfaces in other languages). While interfaces are generally a runtime thing in other languages, concepts are compile-time things in C++.

    So when you're writing an algorithm to operate on a container, you can do it in one of two ways (in C++):

    template<typename T> bool myalgo(std::vector<T> const & t);
    template <typename T> bool myalgo(xVector<T> const & t);

    template <typename ForwardIterator>bool myalgo(ForwardIterator begin, ForwardIterator end);
    And you would call it like this:

    This is conceptually ugly and I would not recommend it for INTERNAL USE. However, when you're talking about exposing your API to the world like Linker is doing, then it is the only way.

    With C++ concepts, you can now do something like this (syntax is imaginary)
    template <concept Container>bool myalgo(Container const & c);
    Which gives you the best of all worlds:

    1. Compile-time checking
    2. Generic code
    3. Flexibility

    When concepts are available, I believe I will be using them very liberally so I hope they are as easy to write as classes.
    #47     Dec 28, 2017
    sle likes this.
  8. #48     Dec 28, 2017
    truetype likes this.
  9. LinkersX


    sortedQueue.addMongo(BSON); i just wrote container as BSON to MongoDB
    sortedQueue.addMongo(JSON); i just wrote container as JSON to MongoDB
    //write container as JSON as file to c://LinkersX/json.txt
    sortedQueue.file("c://LinkersX/json.txt", JSON);
    // of course BSON is excripted
    Last edited: Dec 28, 2017
    #49     Dec 28, 2017
  10. This is exactly why I am sad your passion does not match your design skills. You can write a TON of code, and with the right guidance, you would be incredible.
    #50     Dec 28, 2017
    LinkersX likes this.