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Bug in MT4->MT5 adapter #478326
10/03/19 13:44
10/03/19 13:44
Joined: Jul 2017
Posts: 413
Z
Zheka Offline OP
Senior Member
Zheka  Offline OP
Senior Member
Z

Joined: Jul 2017
Posts: 413
There is a bug in zmq4.mqh in overloading MQL5 functions for the existing MQL4 code base to work on MT5.
Code
#define DEFINE_TIMESERIE(NAME,FUNC,T)                                                                         \
  class CLASS##NAME                                                                                           \
  {                                                                                                           \
  public:                                                                                                     \
    static T Get(const string Symb,const int TimeFrame,const int iShift)                                      \
    {                                                                                                         \
      T tValue[];                                                                                             \
                                                                                                              \
      return((Copy##FUNC((Symb == NULL) ? _Symbol : Symb, [color:#CC33CC]_Period[/color],  iShift, 1, tValue) > 0) ? tValue[0] : -1); \
    }              
....
}

_Period refers to the timeframe/period on the chart that Zorro EA is applied to.

As a result, CMD_HISTORY calls return bars of the timeframe on the chart, rather than that specified by Zorro (which is PERIOD_M1), and that screws up internal Zorro bar construction\gives erroneous data for the Lookback period in Live.

The corrected line that works:
Code
return((Copy##FUNC((Symb == NULL) ? _Symbol : Symb, [color:#CC33CC]TFMigrate(TimeFrame)[/color], iShift, 1, tValue) > 0) ? tValue[0] : -1); 

Re: Bug in MT4->MT5 adapter [Re: Zheka] #478335
10/05/19 08:00
10/05/19 08:00
Joined: Jul 2000
Posts: 27,110
Frankfurt
jcl Offline

Chief Engineer
jcl  Offline

Chief Engineer

Joined: Jul 2000
Posts: 27,110
Frankfurt
Thanks for the info! This will be fixed in the next update.


Moderated by  jcl, Nems, Spirit, Tobias 

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