Just as the name says, we'll enjoy learning C++, one nugget at a time ☕
std::weak_ptr is a smart pointer that holds a non-owning ("weak") reference to an object that is managed by std::shared_ptr. It is used to break reference cycles and to void unnecessary memory retention Reference count A std::weak_ptr does not increa...
Dynamic cast is a tool by which a we can explicitly instruct the compiler to perform type conversion at runtime. This is useful when type of an object is not known at compile time, but can be found at runtime. Let us see this with an example, int m...
A stringstream is a stream that works on strings. It helps to perform IO operations on strings stringstream is versatile for parsing text in C++ Commonly used operations on stringstreams are, Extract data from stream >> Enter data into s...
A header-only library is a library where the entire definition is available in the header files. Hence, we don't need to link to a separate library when building the executable. Header-only libraries are often used for small libraries or for librarie...
How do create a two dimensional vector ?? Let us find out today with this code nugget, #include <iostream> #include <vector> #define rowCount 3 #define columnCount 4 int main() { std::vector<int> singleRow(columnCount, 5); std::vector<std::vec...
Run the following example in any C++ environment of your choice, What would be output that you're expecting ? #include<iostream> struct Box { Box() = default; Box(const Box&) { std::cout << "Copy Constructor being called \n"; } }; Bo...
Smart pointers like unique_ptr & smart_ptr help us a lot with automatic memory management and ownership. They do this by adding a wrapper around a normal pointer variable Cost of a smart pointerHowever light weight it may be, yet smart pointers come ...
It really is a big deal, because, for any object allocated in a stack, when it is about to go out of scope, i.e. when we are about to hit the closing brace "}" the destructor gets called automatically, this is the crux of RAII idiom See the examp...
unique_ptr helps in automating memory management. A tool which helps to save us from the perils of memory leakage issues, ownership problems etc If you look at a managed language like java, Garbage collector takes care of releasing the memory alloc...
