Answer / Alok Kumar Agmani

The 'mutable' storage class specifier is used to allow a member variable of a const object to be modified within non-const member functions. This is useful when we have a const object that contains data that can change, such as variables related to counting or timing. For example:n```nstruct counter {n int m_count;n mutable unsigned long m_last_accessed;n void increment() {n ++m_count;n m_last_accessed = std::time(nullptr);n }n};

What is a class template in c++?

1 Answers  

---

Copy Linked List using recursive function?

2 Answers   Persistent,

---

How do you clear a buffer in c++?

1 Answers  

---

Explain terminate() function?

1 Answers  

---

What is the function of I/O library in C++ ?

1 Answers   HCL,

---

Explain public, protected, private in c++?

1 Answers  

---

1.what is the difference between software & package &application.

1 Answers   Infosys,

---

What is a node class?

1 Answers  

---

Explain how a pointer to function can be declared in C++?

1 Answers  

---

What are the techniques you use for debugging?

1 Answers   Adtran,

---

structure that describe a hotel with name, address,rooms and number of rooms

2 Answers  

---

Why c++ is so important?

1 Answers  

---