Errors, bugs, questions - page 1498

[Vladimir Pastushak]

If a person has purchased a paid product with 5 activations and wants to use it on his 10 mt4 terminals

How will the activation work?

Once for all terminals installed on 1 PC?

Each time on a new terminal installed on the same PC?

[[Deleted]]

Vladimir Pastushak:

If a person has purchased a paid product with 5 activations and wants to use it on his 10 mt4 terminals

How will the activation take place?

Once for all terminals installed on 1 PC?

Each time on a new terminal installed on the same PC?

One activation on one PC. It does not matter how many terminals.

[[Deleted]]

#property strict

void OnStart( void )
{
  int Tmp = 0; // отсутствует warning: variable 'Tmp' not used

  return;
}

[[Deleted]]

Slawa:

How do you change GMT? "It's a monument!" (c) GMT is Greenwich Mean Time

Oh, yeah? That's nice.

[[Deleted]]

zaskok3:

It is being used! You have assigned it value = 0. The warning is then there when it is only declared.

[[Deleted]]

Developers! Are you planning to add a section on the standard library in the MQL4 reference book, like in the MQL5 reference book?

But they added OOP, the library, too... But they forgot about documentation...

[Maxim Khrolenko]

zaskok3:

1)

#property strict

void OnStart()
  {
   int a,b;
   int value;
   a=1; b=2;
   Print("a + b = ",a+b);
  }

Caution:

2)

#property strict

int value;

void OnStart()
  {
   int a,b;
   a=1; b=2;
   Print("a + b = ",a+b);
  }

It's all good.

3)

#property strict

void OnStart()
  {
   int a,b;
   int value;
   a=1; b=2;
   value=3;
   Print("a + b = ",a+b);
  }

Everything's cool.

[Ilyas]

A warning about not actually using local and global variables (simple type or 'complex' without constructors) will be added, but the priority of this task is low.

[[Deleted]]

Maxim Khrolenko:

2)

It's all good.

The road to programming hell is paved withglobalvariables' (Steve McConnell)

[[Deleted]]

Alexey Kozitsyn:
Well, it is being used! You' ve assigned it a value = 0.

This is not a usage. You can of course argue that you could have assigned the result of an expression (function) rather than a constant zero. But that cannot be done when declaring a static variable:

static int Tmp = 0;

And there is no warning here.