MQL5 : Can we do late initialisation of array?

[Varun Maithani]

i want to do

   

ENUM_TIMEFRAMES xTF;
// some logic to set xTF 

 bool listOfIsNewCandle[6] ;



     if(someBoolCondition)

         {

            if(xTF == PERIOD_M1)

               listOfIsNewCandle = {isNewCandle_6min,isNewCandle_5min,isNewCandle_4min,isNewCandle_3min,isNewCandle_2min,false};

            if( xTF  == PERIOD_M2)

                listOfIsNewCandle = {isNewCandle_6min,isNewCandle_5min,isNewCandle_4min,isNewCandle_3min,false,false};

        }

But i get error

   

   'listOfIsNewCandle' - invalid array access   

Is it not possible to do late initialization of array like i am trying to do above?

I feel if i initialise every array index seperately its too verbose. So i wanted to code it like above.

[Sardion Maranatha]

Not possible. Create static array with same size inside the condition and do arraycopy e.g:

bool listOfIsNewCandle_Temp[6] ={isNewCandle_6min,isNewCandle_5min,isNewCandle_4min,isNewCandle_3min,isNewCandle_2min,false};
ArrayCopy(listOfIsNewCandle,listOfIsNewCandle_Temp,0,WHOLE_ARRAY);

[Varun Maithani]

Sardion Maranatha #:

Not possible. Create static array with same size inside the condition and do arraycopy e.g:

cool. thanks

[William Roeder]

Sardion Maranatha #: Not possible.

Of course, it's possible. Pass the array by reference. Do whatever you want with it. You can't return an array.

[Sardion Maranatha]

William Roeder #:
Of course, it's possible. Pass the array by reference. Do whatever you want with it. You can't return an array.

what's the initialized value of element when static array of bool with size of any natural number is declared?

[William Roeder]

Sardion Maranatha #: what's the initialized value of element when static array of bool with size of any natural number is declared?

There isn't any; you have random garbage, thus mostly true (false equals zero).

[William Roeder]

William Roeder #: Of course, it's possible. Pass the array by reference. Do whatever you want with it. You can't return an array.

Not possible to use the brackets except where declared and only with a constant.

Your original code (now modified) was trying to return and array from a function.