A simple counter?

dasilvja  

I'm trying to write the code that would count the times something happens. It doesn't matter what. You don't need any existing code. I'm just learning and trying to understand scope and the order that things are processed. It's all still pretty new. I just want to write, for example:

if(a == b)

{

do something.

counter++

}

So, every time "do something" happened, it would add 1 to the count. It seems straight forward enough but when I attempt it in any context, it only adds 1 to the original value. If I create "counter = 0" and if something happens then counter++, then I will just get a bunch of counter = 1 over and over every time something happens. Does the code have to be more complex then simply creating a variable with a value of 0 then just writing it with "++" inside the IF brackets? Or am I missing something else?

Samuel Manoel De Souza  
dasilvja:

I'm trying to write the code that would count the times something happens. It doesn't matter what. You don't need any existing code. I'm just learning and trying to understand scope and the order that things are processed. It's all still pretty new. I just want to write, for example:

if(a == b)

{

do something.

counter++

}

So, every time "do something" happened, it would add 1 to the count. It seems straight forward enough but when I attempt it in any context, it only adds 1 to the original value. If I create "counter = 0" and if something happens then counter++, then I will just get a bunch of counter = 1 over and over every time something happens. Does the code have to be more complex then simply creating a variable with a value of 0 then just writing it with "++" inside the IF brackets? Or am I missing something else?

use static variables.

Documentation on MQL5: Language Basics / Variables / Static Variables
Documentation on MQL5: Language Basics / Variables / Static Variables
  • www.mql5.com
Static Variables - Variables - Language Basics - MQL5 Reference - Reference on algorithmic/automated trading language for MetaTrader 5
Fernando Carreiro  
dasilvja:

I'm trying to write the code that would count the times something happens. It doesn't matter what. You don't need any existing code. I'm just learning and trying to understand scope and the order that things are processed. It's all still pretty new. I just want to write, for example:

if(a == b)
{
   // do something.
   counter++;
}
So, every time "do something" happened, it would add 1 to the count. It seems straight forward enough but when I attempt it in any context, it only adds 1 to the original value. If I create "counter = 0" and if something happens then counter++, then I will just get a bunch of counter = 1 over and over every time something happens. Does the code have to be more complex then simply creating a variable with a value of 0 then just writing it with "++" inside the IF brackets? Or am I missing something else?
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  3. The code you provided as an example is too simplistic. There are more issues that need to be considered, so provide an example that is more encompassing or closer to your actual requirement. One also needs to consider the scope of the counter. Is it only supposed to live within a loop, or only within a function, or does it need to a global variable within the life-time of the EA or Indicator?
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