Warning and Error on new version

SamNainocard · 10-14-2015 01:35 PM

I recently update Engine and VS 2015, but there're weird warning and error all over the place once I rebuild.

Something about 'destructor was implicitly defined as deleted because a base class destructor is inaccessible or deleted' and UNION 'attempting to reference a deleted function' stuff.

Tutorial and Bloody Massacre build fine though.

**Esenthel** · 10-14-2015 09:41 PM

Hi,

VS 2015 has a new compiler with some changes, you may want to read this:
https://msdn.microsoft.com/en-us/library....140).aspx

If you still have issues, you will have to post some code.

I've noticed that if you use unions on objects with constructors, you may need to add an empty constructor, something like that:

Code:

struct CalcValue // Calculator Value

{

   CVAL_TYPE type; // value type

   UNION

   (

      UNION_ELM(Long  i ;) // CVAL_INT

      UNION_ELM(Dbl   r ;) // CVAL_REAL

      UNION_ELM(VecD2 v2;) // CVAL_VEC2

      UNION_ELM(VecD  v ;) // CVAL_VEC

      UNION_ELM(VecD4 v4;) // CVAL_VEC4

   )

   CalcValue() {} // needed because of union

};

SamNainocard · 10-15-2015 05:25 AM

Thank you, I able to fix all error now, however there's still few warning about union deleted destructor.

warning C4624: 'SkillMod::<unnamed-tag>': destructor was implicitly defined as deleted because a base class destructor is inaccessible or deleted

Code:

class SkillMod

{

   mutable UID  id;   

   int mod_inx;

   void operator=(C SkillMod &c){Copy(T, c);}

   SkillMod() {}

   SkillMod(C SkillMod& c) {T=c;}

   SkillMod(UID id, int mod) {T.id=id; T.mod_inx=mod;}

  ~SkillMod() {}

private:

   UNION

   (

      UNION_ELM(mutable AbilityParamPtr _abilityParam;)

      UNION_ELM(mutable PerkParamPtr    _perkParam;)

   )

}

Adding destructor to union stop this warning, but not sure if it's worth to fix all those warning, doesn't seem to have effect in-game though.

Code:

union U

{

      UNION_ELM(mutable AbilityParamPtr _abilityParam;)

      UNION_ELM(mutable PerkParamPtr    _perkParam;)

   ~U(){}

}

**Esenthel** · 10-15-2015 07:48 AM

Are AbilityParamPtr and PerkParamPtr pointers to counted cache elements?
If so, then you shouldn't put them into an union.

SamNainocard · 10-15-2015 12:03 PM

Yes they are, guess I have to separate them then.

Warning and Error on new version
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