size of structures in .NET
- by redpaladin
My problem is very simple. My problem is to send a structure between a program in C to a C# program.
I made a struct in C#:
public struct NetPoint {
public float lat; // 4 bytes
public float lon; // 4 bytes
public int alt; // 4 bytes
public long time; // 8 bytes
}
Total size of the struct must be 20 bytes.
When I do a sizeof() of this struct:
System.Diagnostics.Debug.WriteLine("SizeOf(NetPoint)=" +
System.Runtime.InteropServices.Marshal.SizeOf(new NetPoint()));
The debug console shows: SizeOf(NetPoint)=24
But I expected to have 20 bytes. Why do I see a difference?
