What is the difference between virtual functions and pure virtual functions?

1284

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Can we call a virtual function from a constructor?

1226

---

Can we use THIS Pointer in static function – Reason in C++?

735

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Factory Method C++ – How to delete pointers returned by it

728

---

What are issues if we mix new and free in C++?

724

---

How does free know the size of memory to be deleted

802

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What's the value of the expression 5["abxdef"]?

1492

---

What is a built-in function in C?

1512

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In C, What is the #line used for?

2095

---

How can a string be converted to a number?

963

---

How can a number be converted to a string?

1238

---

Why doesn't C support function overloading?

2605

---

Why n++ execute faster than n+1 ?

2840

---

What are the advantages of Macro over function?

1925

---

What is the difference between struct and union in C?

1240

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