clr

Parrot is the virtual machine originally designed for Perl 6. What technical capabilities does the Parrot VM offer that competing virtual machines such as the Java Virtual Machine (JVM) / Hotspot VM and Common Language Runtime (CLR) lack? Schwern The following answer was written in 2009. See also this 2015 update by raiph . To expand on @Reed and point out some highlights, Parrot's opcodes are at a far higher level than most virtual machines. For example, while most machines store integers and floats, the basic registers are integers, numbers, strings and Parrot Magic Cookies (PMCs). Just

Has anybody here ever used ngen? Where? why? Was there any performance improvement? when and where does it make sense to use it? Yes, I've seen performance improvements. My measurements indicated that it did improve startup performance if I also put my assemblies into the GAC since my assemblies are all strong named. If your assemblies are strong named, NGen won't make any difference without using the GAC. The reason for this is that if you have strong named assemblies that are not in the GAC, then the .NET runtime validates that your strong named assembly hasn't been tampered with by loading

Edit : Comments at bottom. Also, this . Here's what's kind of confusing me. My understanding is that if I have an enum like this... enum Animal { Dog, Cat } ...what I've essentially done is defined a value type called Animal with two defined values, Dog and Cat . This type derives from the reference type System.Enum (something which value types can't normally do—at least not in C#—but which is permitted in this case), and has a facility for casting back and forth to/from int values. If the way I just described the enum type above were true, then I would expect the following code to throw an

I'd like to migrate a .NET 3.5 WinForms based application to the latest .NET version (4.5). The application uses "external" components (can be thought of as plugins) that are also currently .NET 3.5 based. I'd like to know what runtime/core libraries are used in case we convert ONLY THE APPLICATION to compile using .NET 4.5? Should this scenario properly work? (loading .NET 3.5 assemblies in a 4.5 process)? * The plugin assemblies are loaded via reflection. How does the CLR runtime handle such a scenario? is this a safe practice? If you recompiled the main EXE of your app to target .NET 4.x or

Although I know the terms I used to forget the differences sometimes...So just to maintain a place for reference...Thanks all for your answers. SLaks ASP , Active Server Pages (now referred to as ASP Classic) is a server-side scripting environment that predates .Net and has nothing to do with it ASP pages are usually written in VBScript, but can be written in any language supported by the Windows Scripting Host - JScript and VBScript are supported natively, with third-party libraries offering support for PerlScript and other dynamic languages. .Net is a framework for managed code and

Firstly, I apologize for the length of this question. I am the author of IronScheme . Recently I have been working hard on emitting decent debug info, so that I can use the 'native' .NET debugger. While this has been partly successful, I am running into some teething problems. The first problem is related to stepping. Due to Scheme being an expression language, everything tends to be wrapped in parenthesis, unlike the major .NET languages which seems to be statement (or line) based. The original code (Scheme) looks like: (define (baz x) (cond [(null? x) x] [(pair? x) (car x)] [else (assertion

i saw the System.Data.Common.CommandTrees.ExpressionBuilder.EdmFunctions static class accidently, that contains a set of extension methods on System.Data.Common.CommandTrees.DbExpression , like AddDays, Concat,.... which bring back System.Data.Common.CommandTrees.DbFunctionExpression as return type, this static methods if needs to an argument, they only accept a System.Data.Common.CommandTrees.DbExpression type, in addition i look over the System.Data.Common.CommandTrees.DbExpression and i saw this class is abstract and by its static members you can create a System.Data.Common.CommandTrees