passing struct array as function agrument

[Dua Yong Rew]

double   Bar_Close[];

double Distance(double& Bar_Close[])
{
...
}

for double I know it pass like above

but how about this?

MqlRates Bar_Rates[];

how can I pass the array as an argument into the function?

[Alain Verleyen]

doshur:

for double I know it pass like above

but how about this?

how can I pass the array as an argument into the function?

There is no difference.

MqlRates Bar_Rates[];

double Distance(MqlRates &rates[])
{
//---

   return 0.;
}

[Dua Yong Rew]

angevoyageur:

There is no difference.

thanks, tried and works perfectly

any difference using 

double Distance(MqlRates &rates[])

 or

double Distance(MqlRates& rates[])

[phi nuts]

doshur:

thanks, tried and works perfectly

any difference using 

 or

What the compiler and debug says ?, if it's fine, than its OK.

Old post with old build of MT5 https://www.mql5.com/en/forum/631

[Alain Verleyen]

doshur:

thanks, tried and works perfectly

any difference using 

 or

There is no difference, but I prefer the first as the reference (&) is related to the variable and has nothing to do with the type.

[Dua Yong Rew]

phi.nuts:

What the compiler and debug says ?, if it's fine, than its OK.

Old post with old build of MT5 https://www.mql5.com/en/forum/631

no error either way. guess it should be ok.

[justaminute]

I am passing a reference to MqlRates and using this in my class.

However when I try to save this reference as I use it many times in the class, I get an error. Is there a solution to store a reference?

MyClass

private MqlRates myrates[];

Public:
void SetMyRates(MqlRates rates[]){myrates = rates;} //Attempting to store the reference fails

I can use the reference in the array directly, but is there a solution for storing the reference in my class for repeated use? Thank you.

[Morimil]

How can pass MqlRates like this, is this possible?

MqlRates rates[];

Function(rates[].open, rates[].high, rates[].low, rates[].close);

Thank you very much for your answer.

[Lorentzos Roussos]

MqlRates rates_original[];

void test_function(MqlRates &reference[])
{
int total=ArraySize(reference);
if(total>0) Print("Open : "+reference[0].open);
}

reference may be confusing , think of it as "telling the function which rates array to read"

void runtest()
{
ArrayResize(rates_original,5,0);
rates_original[0].open=1.25;
test_function(rates_original);//telling it where to read from
}

[William Roeder]

Alain Verleyen: There is no difference, but I prefer the first as the reference (&) is related to the variable and has nothing to do with the type.

And I prefer the other way; a variable that is a reference to a type. Sixty (60) years since C first came out; still no consensus.