unions and /clr

  • Thread starter Thread starter Peteroid
  • Start date Start date
P

Peteroid

I believe this is not allowed:

union comboVar
{
int i;
double d ;
};

ref class myClass
{
comboVar m_Var_1 ; // error, no unions in ref class
comboVar* m_Var_2 ; // error no pointers either
comboVar^ m_Var_3 ; // error, not these either
} ;

Is there a /clr union equivalent?

[==P==]
 
Peteroid said:
I believe this is not allowed:

union comboVar
{
int i;
double d ;
};

ref class myClass
{
comboVar m_Var_1 ; // error, no unions in ref class
comboVar* m_Var_2 ; // error no pointers either
comboVar^ m_Var_3 ; // error, not these either
} ;

Is there a /clr union equivalent?
Click to expand...

No, there is not. The CLR doesn't support unions.

-cd
 
No, there is not. The CLR doesn't support unions.

-cd
Click to expand...
Actually, you can simulate unions with explicit layouts and field
offests. Ex:

using namespace System::Runtime::InteropServices;

[StructLayout(LayoutKind::Explicit)]
value class comboVar
{
public:
[FieldOffset(0)]
int i;
[FieldOffset(0)]
double d;

};

Austin
 
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