Errors, bugs, questions - page 736

[Aleksey Rodionov]

I was referring to it and also to the .chm extension

[Yedelkin]

Zeleniy:
I meant that one and the one with the .chm extension

https://www.mql5.com/files/docs/mt5/mql5/chm/mql5_russian.chm

https://www.mql5.com/files/pdf/mql5_russian.pdf

[costy_]

void OnStart()
  {
   MqlRates a[],b[];
   Alert("после MqlRates a[],b[] Series == "+ArrayIsSeries(b));
   CopyRates(Symbol(),PERIOD_CURRENT,0,TerminalInfoInteger(TERMINAL_MAXBARS),a);
   ArraySetAsSeries(a,true);
   CopyRates(Symbol(),PERIOD_M1,0,TerminalInfoInteger(TERMINAL_MAXBARS),b);
   Alert("после CopyRates Series == "+ArrayIsSeries(b));
   ArraySetAsSeries(b,true);
   Alert("после ArraySetAsSeries(b,true); Series == "+ArrayIsSeries(b));
}

2012.05.06 17:29:55 TEMP (EURUSD,H1) after ArraySetAsSeries(b,true); Series == false

2012.05.06 17:29:55 TEMP (EURUSD,H1) after CopyRates Series == false

2012.05.06 17:29:55 TEMP (EURUSD,H1) after MqlRates a[],b[] Series == false

It shows and it does not blush. May be I am boiling?

[---]

ArrayGetAsSeries

[costy_]

sergeev:

ArrayGetAsSeries

Removing the lid, turning off the fire.

Thank you.

[Olexandr Topchylo]

Market is not working, no demos or free products can be downloaded - "Error loading program *****. Please try again later"

[Yedelkin]

papaklass:

1 leaked strings left

I figured it out, it's the initialization mode of MQLTradeRequest request structure.

If we initialize it this way:

then"1 leaked strings left" does not appear.

If initialization is carried out from the OpenPosition() function to the global level, the memory record appears:

Regarding the second option. Trying to figure it out, I found the following code:

//+------------------------------------------------------------------+
//|                                                   papaclass4.mq5 |
//+------------------------------------------------------------------+
MqlTradeRequest      mrequest={1};
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void OnStart()
  {
   Print("Global: mrequest.price=",mrequest.price);
  }
//+------------------------------------------------------------------+

Returns:

2012.05.07 10:52:10 papaclass4 (USDCAD,M1) Global: mrequest.price=0.0

It turns out that the variable mrequest={1} is initialized on global level, but the program does not see values of its initialized fields for some reason. The compiler does not complain too.

[Renat Fatkhullin]

You have initialised the first member of the structure with one and the rest with zero by default.

[Yedelkin]

Renat:
You have initialised the first member of the structure with one and the rest with zero by default.

Got it. I found the explanation in the Reference Manual: "There must be at least one value in the initialization sequence: the first element of the corresponding structure or array is initialized with this value, missing elements are considered zero".

[Ilyas]

papaklass:

1 leaked strings left

I figured it out, it's coming from the way MqlTradeRequest structure is initialized.

If we initialize it this way:

then"1 leaked strings left" doesn't appear.

If we move initialization from the OpenPosition() function to the global level, the memory record appears:

Thank you for the message, the compiler error is fixed.