Fixes compilation errors in MT4 and MT5.

Candle.struct.h

@@ -284,11 +284,12 @@ struct CandleOCTOHLC : CandleOHLC<T> {
     if (!ContainsTimeMs(_timestamp_ms)) {
       Print("Error: Cannot update candle. Given time doesn't fit in candle's time-frame! Given time ", _timestamp_ms,
             ", but candle range is ", (long)start_time * 1000, " - ", (long)(start_time + length) * 1000, ".");
+      long _ms;
       if (_timestamp_ms < (long)start_time * 1000) {
-        long _ms = (long)start_time * 1000 - _timestamp_ms;
+        _ms = (long)start_time * 1000 - _timestamp_ms;
         Print("Looks like given time is ", _ms, " ms (", (double)_ms / 1000, " s) before the candle starts.");
       } else {
-        long _ms = _timestamp_ms - (long)(start_time + length) * 1000;
+        _ms = _timestamp_ms - (long)(start_time + length) * 1000;
         Print("Looks like given time is ", _ms, " ms (", (double)_ms / 1000, "s) after the candle ends.");
       }
       DebugBreak();

Indicator/IndicatorCandle.provider.h

@@ -56,11 +56,10 @@ class ItemsHistoryCandleProvider : public ItemsHistoryItemProvider<CandleOCTOHLC
    * Retrieves given number of items starting from the given microseconds or index (inclusive). "_dir" identifies if we
    * want previous or next items from selected starting point.
    */
-  void GetItems(ItemsHistory<CandleOCTOHLC<TV>, ItemsHistoryCandleProvider<TV>>* _history, long _from_time_ms,
+  bool GetItems(ItemsHistory<CandleOCTOHLC<TV>, ItemsHistoryCandleProvider<TV>>* _history, long _from_time_ms,
                 ENUM_ITEMS_HISTORY_DIRECTION _dir, int _num_items, ARRAY_REF(CandleOCTOHLC<TV>, _out_arr)) {
     // Method is called if there is a missing item (candle) in the history. We need to regenerate it.
-    Print("Error: Retrieving items by this item provider is not implemented!");
-    DebugBreak();
+    return false;
   }
 
   /**

Indicator/IndicatorRenko.provider.h

@@ -25,8 +25,8 @@
 #define INDICATOR_RENKO_PROVIDER_H
 
 #ifndef __MQL__
-// Allows the preprocessor to include a header file when it is needed.
-#pragma once
+  // Allows the preprocessor to include a header file when it is needed.
+  #pragma once
 #endif
 
 /**
@@ -68,12 +68,24 @@ class ItemsHistoryRenkoCandleProvider : public ItemsHistoryCandleProvider<TV> {
    * Retrieves given number of items starting from the given microseconds or index (inclusive). "_dir" identifies if we
    * want previous or next items from selected starting point.
    */
-  void GetItems(ItemsHistory<CandleOCTOHLC<TV>, ItemsHistoryRenkoCandleProvider<TV>>* _history, long _from_time_ms,
+  bool GetItems(ItemsHistory<CandleOCTOHLC<TV>, ItemsHistoryRenkoCandleProvider<TV>>* _history, long _from_time_ms,
                 ENUM_ITEMS_HISTORY_DIRECTION _dir, int _num_items, ARRAY_REF(CandleOCTOHLC<TV>, _out_arr)) {
     // Method is called if there is a missing item (candle) in the history. We need to regenerate it.
 
     Print("IndicatorRenko is not yet implemented!");
     DebugBreak();
+    return false;
+  }
+
+  /**
+   * Retrieves items between given indices (both indices inclusive). Should return false if retrieving items by this
+   * method is not available.
+   */
+  bool GetItems(ItemsHistory<CandleOCTOHLC<TV>, ItemsHistoryRenkoCandleProvider<TV>>* _history, int _start_index,
+                int _end_index, ARRAY_REF(CandleOCTOHLC<TV>, _out_arr)) {
+    Print("IndicatorRenko is not yet implemented!");
+    DebugBreak();
+    return false;
   }
 };
 

Indicators/Account/Indi_AccountStats.mqh

@@ -193,7 +193,7 @@ class Indi_AccountStats : public Indicator<Indi_AccountStats_Params> {
    */
   virtual void OnDataSourceEntry(IndicatorDataEntry &entry,
                                  ENUM_INDI_EMITTED_ENTRY_TYPE type = INDI_EMITTED_ENTRY_TYPE_PARENT) override {
-    Indicator<TS>::OnDataSourceEntry(entry, type);
+    Indicator<Indi_AccountStats_Params>::OnDataSourceEntry(entry, type);
 
     if (type != INDI_EMITTED_ENTRY_TYPE_CANDLE) {
       return;

Indicators/Tick/Indi_TickMt.mqh

@@ -264,7 +264,7 @@ class Indi_TickMt : public IndicatorTick<Indi_TickMtParams, double, ItemsHistory
     EmitEntry(_entry, INDI_EMITTED_ENTRY_TYPE_TICK);
     // Appending tick into the history.
     AppendEntry(_entry);
-    
+
     return _ask != WRONG_VALUE && _bid != WRONG_VALUE;
   }
 };

Object.mqh

@@ -24,8 +24,6 @@
 #ifndef OBJECT_MQH
 #define OBJECT_MQH
 
-#define nullptr NULL
-
 // Includes.
 #include "Object.enum.h"
 #include "Object.extern.h"
@@ -37,14 +35,11 @@
  * Class to deal with objects.
  */
 class Object : public Dynamic {
-
  protected:
-
   void *obj;
   long id;
 
  public:
-
   /**
    * Class constructor.
    */

Platform.h

@@ -21,13 +21,13 @@
  */
 
 #ifndef __MQL__
-// Allows the preprocessor to include a header file when it is needed.
-#pragma once
+  // Allows the preprocessor to include a header file when it is needed.
+  #pragma once
 
-// Includes.
-#include "Deal.enum.h"
-#include "Order.struct.h"
-#include "Platform.define.h"
+  // Includes.
+  #include "Deal.enum.h"
+  #include "Order.struct.h"
+  #include "Platform.define.h"
 
 /**
  * Extern declarations for C++.
@@ -58,7 +58,7 @@ extern int Bars(CONST_REF_TO(string) _symbol, ENUM_TIMEFRAMES _tf);
   #define PLATFORM_DEFAULT_INDICATOR_TICK Indi_TickMt
   #define PLATFORM_DEFAULT_INDICATOR_TF Indi_TfMt
 #else
-#include "Indicators/Tick/Indi_TickProvider.h"
+  #include "Indicators/Tick/Indi_TickProvider.h"
   #define PLATFORM_DEFAULT_INDICATOR_TICK Indi_TickRandom
   #define PLATFORM_DEFAULT_INDICATOR_TF IndicatorTfDummy
 #endif
@@ -871,4 +871,4 @@ datetime StructToTime(MqlDateTime &dt_struct) {
 class PlatformAutoInitializer {
  public:
   PlatformAutoInitializer() { Platform::Init(); }
-} _platform_auto_initializer;
+} _platform_auto_initializer;

Std.h

@@ -60,6 +60,7 @@
   #define MAKE_REF_FROM_PTR(TYPE, NAME, PTR) TYPE* NAME = PTR
   #define REF_DEREF .Ptr().
   #define int64 long
+  #define nullptr NULL
 #else
   #define GET_PTR(obj) (*obj)
   #define THIS_ATTR this->
@@ -122,18 +123,18 @@
    */
   #define CONST_REF_TO(T) const T&
 
-  /**
+/**
 
- * Reference to the array.
- *
- * @usage
- *   ARRAY_REF(<type of the array items>, <name of the variable>)
- */
-#define ARRAY_TYPE(T) _cpp_array<T>
-#define ARRAY_REF(T, N) ARRAY_TYPE(T) & N
-#define FIXED_ARRAY_REF(T, N, S) T(&N)[S]
+* Reference to the array.
+*
+* @usage
+*   ARRAY_REF(<type of the array items>, <name of the variable>)
+*/
+  #define ARRAY_TYPE(T) _cpp_array<T>
+  #define ARRAY_REF(T, N) ARRAY_TYPE(T) & N
+  #define FIXED_ARRAY_REF(T, N, S) T(&N)[S]
 
-#define CONST_ARRAY_REF(T, N) const _cpp_array<T>& N
+  #define CONST_ARRAY_REF(T, N) const _cpp_array<T>& N
   #define CONST_ARRAY_REF(T, N) const _cpp_array<T>& N
 
   /**
@@ -568,4 +569,4 @@ struct AsSeriesReleaseEnsurer {
   SET_BUFFER_AS_SERIES_RELEASE_ENSURER_END(7);
 #define RELEASE_BUFFER8(A, B, C, D, E, F, G, H)      \
   RELEASE_BUFFER8_NO_ENSURE(A, B, C, D, E, F, G, H); \
-  SET_BUFFER_AS_SERIES_RELEASE_ENSURER_END(8);
+  SET_BUFFER_AS_SERIES_RELEASE_ENSURER_END(8);