clr

I encountered with question: why it's impossible cast int[] to object[] , e.g. object[] o = new int[] { 0, 1, 2 }; Meanwhile I can cast to just object and back to int[] . I'll be glad to hear deep answer. spender Directly from the docs : Array covariance specifically does not extend to arrays of value-types. For example, no conversion exists that permits an int[] to be treated as an object[]. An array of ints or any other value-type is not an array of objects. Value types have different storage characteristics to those of reference types. An array of (reference type) objects holds a list of

I know I should not rely upon that there is one-to-one mapping between managed and unmanaged threads . From MSDN : An operating-system ThreadId has no fixed relationship to a managed thread, because an unmanaged host can control the relationship between managed and unmanaged threads. Specifically, a sophisticated host can use the Fiber API to schedule many managed threads against the same operating system thread, or to move a managed thread among different operating system threads. In real life though, do such CLR hosts exist? (and if so, what are they?) I just answered a related question, and

All struct s in C# by default are treated as [StructLayout(LayoutKind.Sequential)] -marked value types. So lets take some number of struct s and inspect sizes of this struct s: using System; using System.Reflection; using System.Linq; using System.Runtime.InteropServices; class Foo { struct E { } struct S0 { byte a; } struct S1 { byte a; byte b; } struct S2 { byte a; byte b; byte c; } struct S3 { byte a; int b; } struct S4 { int a; byte b; } struct S5 { byte a; byte b; int c; } struct S6 { byte a; int b; byte c; } struct S7 { int a; byte b; int c; } struct S8 { byte a; short b; int c; } struct

I have been pondering why it is recommended that we should not release managed resources inside finalize. If you see the code example at http://msdn.microsoft.com/en-us/library/system.gc.suppressfinalize.aspx , and search for string "Dispose(bool disposing) executes in two distinct scenarios" and read that comment, you will understand what I mean. Only possibility I can think of is that it probably has something to do with the fact that it is not possible to predict when finalizer will get called. Does anyone know the right answer ? thanks, mishal Jon Skeet If you're referencing another object

I'm having a problem linking a C++ project in VS2008 when using the /clr compile option. I am getting the following build errors: Class1.obj : error LNK2022: metadata operation failed (8013118D) : Inconsistent layout information in duplicated types (_PROPSHEETPAGEA): (0x0200046f). Class1.obj : error LNK2022: metadata operation failed (8013118D) : Inconsistent layout information in duplicated types (_PROPSHEETPAGEW): (0x02000473). Class2.obj : error LNK2022: metadata operation failed (8013118D) : Inconsistent layout information in duplicated types (_PROPSHEETPAGEA): (0x0200046f). Class2.obj :

This question already has an answer here: Implicit typing; why just local variables? 6 answers Why is it not possible to have implicitly-typed variables at a class level within C# for when these variables are immediately assigned? ie: public class TheClass { private var aList = new List<string>(); } Is it just something that hasn't been implemented or is there a conceptual/technical reason for why it hasn't been done? Here's a blog post from Eric that explains the reasoning. 来源： https://stackoverflow.com/questions/2771485/var-in-c-sharp-why-cant-it-be-used-as-a-member-variable