You have seen Foo() = default;. It declares a default constructor (duh!). But what does it really do, and when is it actually useful? "When is it useful" is a very interesting question in my opinion because next time when you see = default; in other people's code, you would understand why…
This is the third post of a series that I am making on C++ exceptions. C++ exception (1) — zero-cost exception handlingThis is the first post of a series I am making on C++ exceptions. C++ exception (1) — zero-cost exception handlingThis is the first post of a series I am making…
This is the second post of a series that I am making on C++ exceptions. C++ exception (1) — zero-cost exception handlingThis is the first post of a series I am making on C++ exceptions. C++ exception (1) — zero-cost exception handlingThis is the first post of a series I am making…
This is the first post of a series I am making on C++ exceptions. C++ exception (1) — zero-cost exception handlingThis is the first post of a series I am making on C++ exceptions. C++ exception (2) — throwing an exceptionThis is the second post of a series that I am making…
Compare the following two programs, and can you predict what the outputs would be for each? // program #1 struct Foo { int x; }; void stack() { int x = 3; } void bar() { struct Foo foo{}; cout << foo.x << endl; } int main() { stack(); bar(); return 0; } // program #2 struct Foo { int x; }; void stack(…
std::enable_shared_from_this
[https://en.cppreference.com/w/cpp/memory/enable_shared_from_this] allows a
class to have a valid shared_ptr of this. Simply adding a member function that
returns shared_ptr
You have heard about Coroutine in C++, and you want to use it. There're two coroutine implementations that are considered most mature - cppcoro and folly::coro. They are written by the same guy - Lewis Baker. He's brilliant, and you shoud watch his cppcon talk on structured concurrency [https:…
struct Foo {
// virtual ~Foo() {};
int a;
};
struct Bar : public Foo {
~Bar() {std::cout << "bar dtor" << std::endl;};
};
int main() {
std::shared_ptr