Cpp

What Are Templates in C++?

C++ templates let you write a function or class once with a placeholder type parameter, and the compiler generates a fully concrete, type-checked version for e…

Generics vs Templates: Java vs C++

Java generics and C++ templates both let you write type-parameterized code, but they resolve that parameterization completely differently: Java erases generic…

What is the Diamond Problem in Multiple Inheritance?

The diamond problem is the ambiguity that arises when a class inherits from two classes that both inherit from a common base, and the compiler cannot determine…

What is a Pure Virtual Function?

A pure virtual function is a C++ member function declared with '= 0' that has no implementation in the class that declares it, forcing every concrete (non-abst…

What is a Template Class?

A template class is a class defined with one or more type parameters so the compiler can generate a distinct, type-specific version of it for each concrete typ…

What is a Friend Class in C++?

A friend class in C++ is a class explicitly granted access to another class’s private and protected members, declared using the `friend` keyword inside the cla…

Friend Functions vs Encapsulation

A friend function is a non-member function explicitly granted access to a class’s private and protected members, and it appears to conflict with encapsulation…