Here's a piece of Qt code: int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); QGuiApplication app2(argc, argv); The first constructor call returns, the second does not. I ...

Consider passing a shared pointer of const std::shared_ptr<Object> to the ctor of following class. struct MyClass { explicit MyCLass(const std::shared_ptr<const Object> & input) : ...

I have the following code that defines an abstract class and its final subclasse. The two classes are both subclasses of the equinox.Module class, which registers class attributes as the leaves of a ...

I have some tricky code that I need to initialize many objects that refer to each other. I want to allocate and construct them all at once, so I put them all in a struct. It looks like this: // User ...

So I’m kinda stuck wrapping my head around this whole parent-child dependency thing. My assumption was, once you declare all the dependencies in the parent (BaseController), the child (like ...

While I was learning the language, I became interested in primitive types and their object wrappers. While I was in my code editor discovering this language feature, I discovered that any of these ...

I'm working on a .NET application where every command/query handler needs access to three shared services: IValidator, ISecurity and ILogger. Rather than manually injecting these into each handler ...

I have the following: class A: def __init__(self, x): self.x = x A(5) # Works fine x = A.__new__ # Save the function A.__new__ = lambda y: y # Temporarily override it A.__new__ = x # ...

I want to create a variable of type Foo. The class Foo consists of a variable called Bar bar_ which is filled directly in the constructor initialization. The thing is, class Bar has a reference to the ...

I'm getting a compiler error about a type conversion that should be legal, to my eyes. Let's say I have a home-grown string class, convertible from and to char*: class custom_string { public: ...

I'm trying to learn constructors and statics and I'm not sure what I'm doing wrong here controller <?php namespace App\Http\Controllers\Api; use App\Models\SampleModel; class SampleController { ...

My error is SiteChecker is not a function I was following this guy steps https://www.thepolyglotdeveloper.com/2020/06/scan-broken-links-website-javascript/ to set up package and execute , but on my ...

I'm trying to explicitly instantiate a forwarding constructor using C++20 with GCC 13.3 compiler in order not to put its definition in the header file. Here is a minimal example: Foo.h #pragma once ...

I have this record: record Foo { string _bar = "initialized"; public string Bar => _bar; } I'm running the following code: var foo = new Foo(); Console.WriteLine(foo?.Bar ?? &...

In the example, there is a "match redundant" Error, indicating that SOME s is matching on every string and not the provided s: fun matchs (s : string) : (string option -> bool) = fn x =&...