Given the following, why does the InvalidCastException get thrown? I can't see why it should be outside of a bug (this is in x86; x64 crashes with a 0xC0000005 in clrjit.dll).
class Program
{
static void Main(string[] args)
{
…
Hei. I was reading Digi Traffic Accelerator's decompiled source (I think it is the best way to learn), until I got some non-understandable code! Please take a look:
internal class ProxyFarm
{
private static Random rand = new Random();
…
If you compile the following code:
private async Task M()
{
return await Task.FromResult(0);
}
And then decompile it (I used dotPeek) and examine the all-important MoveNext method, you will see a bool variable declared near the beginning;…
The following code compiles in gcc 9.1 godbolt but not clang 8 godbolt:
class A {
protected:
~A() = default;
};
class B final : public A {
};
int main() {
auto b = B{};
}
Clang's error:
:10:16: error: temporary of type 'A' has…
Say I'm writing an int wrapper and need to provide every single operator overload. Must the author list out every single one, or can it auto-generate any based on what the author has provided? Can/does the compiler infer any new auto-defined…
When I write a class Widget.java
public class Widget {
int data;
String name;
}
will the compiler-generated constructor be public or default?
public would be like
public class Widget {
int data;
String name;
public Widget()…
class Base
{
virtual void foo() = 0;
//~Base(); <-- No destructor!
};
Obviously, Base will be derived. So, does C++ says the compiler-generated destructor of Base must be virtual?
Thanks!
Stumbled upon a relatively often used piece of code which seemed inefficient at first. (I know optimization could be evil sometimes, but I was wondering)
introduction part - fairly simple SP execution + reading the returned data:
try
{
await…
I found a memory leak in my code that was caused by calling only the base class destructor for objects. This problem is understood: I already added the virtual to the destructor of the interface class MyÌnterface. What puzzles me is that the…
I have been attempting to implement a compiler generated look-up table
containing the values of the sine function. The C++ code looks like this
#include
#include
#include
#include
using namespace…
I try to use .NET 5 Source Generators for generate webapi controllers starting from commands and queries.
I use this article [example]https://www.edument.se/en/blog/post/net-5-source-generators-mediatr-cqrs for this
But i want use commands and…
Because of inheritance linearization in Scala, I would like to understand how traits I specify for a case class are ordered relative to the two traits automatically generated and added by the Scala compiler; i.e. Product with Serializable (and…
There are some functions which compiler could implicitly define for us in case of need and if they can be properly defined for that class. Like
default constructor
copy constructor
assignment operator
destructor.
So, whether compiler generated…
I am trying to write a simple caching mechanism. Basically, whenever a method is called, its return value should be saved in a cache. Using AOP, my simplified CacheAspect looks as follows.
using Castle.DynamicProxy;
public class CacheAspect :…
I'm working to replace the unapply method on a case class's companion object with my own implementation. And after investigating lots of different tangents related to implementing unapply, it appears there is a null guard in most of them, both in…
