Pointer as return type is this code Vallid?

[pjurri]

Hi,
I have the following issue. I need to know if the following code is not giving an issue when the garbage colector does his thing. say that aDemoByteBuff is containing a ushort. is the function GetAsUShort vallid?
and is GetAsPointer valid when i translate the buffer direct in the caller.
ushort test = *(ushort*)instance.GetAsPointer()

the code is compiling but does it give a problem?

Many thanks
Peter

    class JustAClass
    {
        public byte[] aDemoByteBuff = new byte[2];
 
        public JustAClass()            
        {
        }
 
        unsafe public ushort GetAsUShort()
        {
            fixed (byte* p = &aDemoByteBuff)
               return *(ushort*)p;
        }
 
        public override unsafe byte* GetAsPointer()
        {
             fixed (byte* p = &aDemoByteBuff[0])
                 return p;
        }
}
 

[GaryTexmo]

Did you try this, or did you just type it out in notepad and are asking if it works?

I'm unable to compile your code, so I'm guessing you didn't... so I'm a little confused by your post.

To answer your question though, yes the garbage collector should still clean up anything you allocate in unsafe code. I don't see any delete function (ie, C++ style) but I could be wrong. Anybody else want to weigh in on this one?

[pjurri]

When you use unsafe code you need to tell the compiler that you allow unsafe code. Goto menuitem project and select project properties. Goto Build and select allow unsafe code. compile.

I use this in my software lib but edited a little sample class. I never have had problems with it (wrong results) but i had doubts if it is just luck.

I have my anwser. I am happy that the GetAsUShort() is ok (I started a tread also on Microsoft forum).

Thanks for helping
Peter

[GaryTexmo]

Oh no, I realize that I needed the u unsafe option and indeed had it checked... ah I see the problem now though, it was something unrelated.

[pjurri]

Thanks you for taking the effort to look at the issue i had. I have my anwser and realize that i still need some low level unmanaged code.
Peter