With the new standard, there are new ways of doing things, and many are nicer than the old ways, but the old way is still fine. It’s also clear that the new standard doesn’t officially deprecate very much, for backward compatibility reasons. So the question that remains is: What old ways of coding are definitely … Read more
What are some good explanations on what argument dependent lookup is? Many people also call it Koenig Lookup as well. Preferably I’d like to know: Why is it a good thing? Why is it a bad thing? How does it work? 4 Answers 4
I was reading the answers to this question C++ pros and cons and got this doubt while reading the comments. programmers frequently find it confusing that “this” is a pointer but not a reference. another confusion is why “hello” is not of type std::string but evaluates to a char const* (pointer) (after array to pointer … Read more
It’s difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 8 years ago. Locked. This question and its answers are locked … Read more
What do the following phrases mean in C++: zero-initialization, default-initialization, and value-initialization What should a C++ developer know about them? 2 Answers 2
Lately, I’ve been trying to learn C++ from this website. Unfortunately whenever I try to run one of the code samples, I see that program open for about a half second and then immediately close. Is there a way to stop the program from closing immediately so that I can see the fruits of my … Read more
Is there any good reason that an empty set of round brackets (parentheses) isn’t valid for calling the default constructor in C++? MyObject object; // ok – default ctor MyObject object(blah); // ok MyObject object(); // error I seem to type “()” automatically everytime. Is there a good reason this isn’t allowed? 9 Answers 9
Why is it wrong to use std::auto_ptr<> with standard containers? 6 Answers 6
Without referring to a book, can anyone please provide a good explanation for CRTP with a code example? 6 Answers 6
If the classes below were not templates I could simply have x in the derived class. However, with the code below, I have to use this->x. Why? template <typename T> class base { protected: int x; }; template <typename T> class derived : public base<T> { public: int f() { return this->x; } }; int … Read more
