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Assign object handle to array element


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#1 zexee   Members   -  Reputation: 118

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Posted 11 October 2013 - 12:58 AM

I am a bit confused about how to use object handle. Here is the code example I was trying to compile with the add-on array:

class Obj {
  int x;
};

void main() {
  array<Obj@> a(3);
  Obj o;
  o.x = 10;
  a[0] = @o;
}

The compile error is "Can't implicitly convert from 'Obj@const&' to 'const Obj&'." for the assign line.

What is the correct way of doing that?

 



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#2 Andreas Jonsson   Moderators   -  Reputation: 3416

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Posted 11 October 2013 - 08:00 AM

The @ symbol goes on the left hand expression to signal a handle assignment. The right hand expression can also be pre-fixed with @, but that is optional.

 

 @a[0] = o;

 

Without the @ symbol the assignment will be done by value, i.e. calling the Obj's opAssign operator.


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#3 zexee   Members   -  Reputation: 118

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Posted 11 October 2013 - 11:46 PM

I see, thank you very much!






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