Errors, bugs, questions - page 1970

[pavlick_]

pavlick_:

Got an error in my script, trying to localise it, so it's bypassed for now.

I think I found it:

if(sizeof(color) <= sizeof(ulong))
   {
      
      if( ObjectCreate(0, "any_object", OBJ_TREND, 0, 0, 0)  &&
          ObjectSetInteger(0, "any_object", OBJPROP_COLOR, clrNONE) )
      {
         ulong clr;
         if( ObjectGetInteger(0, "any_object", OBJPROP_COLOR, 0, clr) )
         {
            Alert("clr == clrNONE ?  ", clr == (ulong)clrNONE);
            Alert("clrNONE value = ", (ulong)clrNONE);
            Alert("value that was returned = ", clr);
         }
         
      }
   }

Alert:

clr == clrNONE ? false

clrNONE value = 4294967295

value that was returned = 18446744073709551615

I.e., we set colour clrNONE for the object, then we read colour of the object and compare it with clrNONE - they do not converge.

[A100]

pavlick_:

I.e. set the object's colour to clrNONE, then read the object's colour

read colour of another object

[pavlick_]

A100:
read the colour of the other object

Yes, thank you. I fixed the names there, but the error is still there.

[fxsaber]

pavlick_:

set the object to colour clrNONE, then read the colour of the object, compare it with clrNONE - they do not match.

Alert("clr == clrNONE ?  ", (color)clr == clrNONE); // true

clrNONE - all bits of 4 bytes are filled with ones.

ulong clr - all bits of 8 bytes are filled with ones.

[A100]

pavlick_:

Yes, thank you. I fixed the names there, but the error is still there.

In fact, in ObjectGetInteger, instead of

void ObjectGetInteger( long& x ) { x = clrNONE; }

.

void ObjectGetInteger( long& x ) { x = -1; }

solution: then write x instead of x everywhere.

(color)x

[pavlick_]

fxsaber:

clrNONE - all bits of the 4 bytes are filled with ones.

ulong clr - all bits of 8 bytes are filled with ones.

There is some kind of error here, I think.

1. clrNONE is a positive 4-byte number since Alert( long(clrNONE) ) == 4294967295 (if it were negative (color sign), it would go into minus)

2. We converted it to long in SetInteger, the value could not change

3. Why do I get a non-primary number in SetInteger?

Either the color inside the terminal is converted to a signed type, int for example, and then grows when converted to along, or something else.

[pavlick_]

Once again, thank you all very much. I'm almost sure that inside colour is casted to signed, with reverse casting and error. Well, it's up to developers to write a valid ObjectGetInteger(), it only takes a few characters: ObjectGetInteger() { return long((uint)internal_clr); }

[fxsaber]

Is this an error (different arrays) or not?

void OnStart()
{
  short Data[] = {1};
  short Data2[];
  
  StringToShortArray(ShortArrayToString(Data), Data2);
//  StringToShortArray(ShortArrayToString(Data), Data2, 0, ArraySize(Data)); // так массивы совпадут
  
  ArrayPrint(Data);  // 1
  ArrayPrint(Data2); // 1 0
}

[TheXpert]

fxsaber:
Is this an error (different arrays) or not?

no, just a final 0 added.

[fxsaber]

Комбинатор:
No, it just adds a terminating 0.

Added a line above - specified to copy the length of the line. It started to match. I.e. it turns out that input parameter count = -1 adds zero to the end, while count = StringLen adds nothing. Nyuansyk!