Tag Archives

Archive of posts published in the tag: C#

.NET Internals Cookbook Part 10 — Threads, Tasks, asynchronous code and others

This is the tenth part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 65. How can you await async void method or catch exceptions thrown…

.NET Internals Cookbook Part 9 — Finalizers, queues, card tables and other GC stuff

This is the ninth part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 59. What happens if an exception is thrown in finalizer? What about…

.NET Internals Cookbook Part 8 — C# gotchas

This is the eighth part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 52. Can you have class in a class? Class in an interface?…

.NET Internals Cookbook Part 7 — Word tearing, locking and others

This is the seventh part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 45. Should we always avoid boxing? Boxing is expensive, it wraps value…

.NET Internals Cookbook Part 6 — Object internals

This is the sixth part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 36. What is a shim? .NET applications are started directly, the same…

.NET Internals Cookbook Part 5 — Methods, parameters, modifiers

This is the fifth part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 27. Can two methods differ in return type only? Not in C#,…

.NET Internals Cookbook Part 4 — Type members

This is the fourth part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 18. Can you add type constructor to the interface? In C# no.…

.NET Internals Cookbook Part 3 — Initialization tricks

This is the third part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 13. Can a variable be true and false at the same time?…

.NET Internals Cookbook Part 2 — GC-related things

This is the second part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 7. How to compact the LOH? You need to set GCSettings.LargeObjectHeapCompactionMode property…

.NET Internals Cookbook Part 1 — Exceptions, filters and corrupted processes

This is the first part of the .NET Internals Cookbook series. For your convenience you can find other parts in the table of contents in Part 0 – Table of contents 1. What happens when you throw something which does not inherit from…

.NET Internals Cookbook Part 0 — Table of contents

This is the table of contents of the .NET Internals Cookbook. Look below for links to all answers. In this series I answer various .NET questions. Some of them are asked during interviews, some of them I see on the internet, some of…

Phantom types to encode state in C#

You cannot add or remove method from generic interface based on the type. Also, CLR doesn’t support higher kinded types (as of now). Let’s say that we want to encode state of an object in its type and disallow some operations depending on…

Machine Learning Part 5, ILP Part 51 — Linear regression

This is the fifty first part of the ILP series. For your convenience you can find other parts in the table of contents in Part 1 – Boolean algebra This is the fifth part of the ML series. For your convenience you can…

.NET Inside Out Part 9 — Generating Func from a bunch of bytes in C# revisited

This is the ninth part of the .NET Inside Out series. For your convenience you can find other parts in the table of contents in Part 1 – Virtual and non-virtual calls in C# We know how to generate delegate from a byte…

Async Wandering Part 5 — Catching exceptions from async void

This is the fifth part of the Async Wandering series. For your convenience you can find other parts in the table of contents in Part 1 – Why creating Form from WinForms in unit tests breaks async? If you are interested in the…

Custom memory allocation in C# Part 11 — Benchmarking UnsafeList

This is the eleventh part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack I presented some results suggesting that UnsafeList is faster than…

Custom memory allocation in C# Part 10 — Hijacking new in .NET Core

This is the tenth part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack I had .NET Core 2.1.103 x64 installed and I wanted…

Custom memory allocation in C# Part 9 — Hijacking new in x64

This is the ninth part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack We already hijacked new in C#. Last time we did…

Exception propagation in WinForms

Let’s start with the following code:

You throw exception as soon as your form is loaded, however, catch block is not executed. What happens? Initially I though this is out of band exception which is thrown on another thread. But after some…

Trivial ScheduledThreadPoolExecutor in C#

Today we are going to implement trivial ScheduledExecutorService in C#. Introduction We want to have a thread pool of fixed size which we can use to execute three types of tasks: One time tasks Tasks with fixed delay between executions Tasks with fixed…