How are Structure passing and returning implemented by the complier?

1176

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What the advantages of using Unions?

1236

---

what is a NULL Pointer? Whether it is same as an uninitialized pointer?

1290

---

What is NULL pointer?

1107

---

What are pointers?

1123

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Question on Copy constructor.

1041

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What is the difference between member functions and static member functions?

1154

---

What are "pure virtual" functions?

1142

---

What is the difference between malloc, calloc and realloc?

1052

---

Declare a pointer to a function that takes a char pointer as argument and returns a void pointer.

1013

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What does malloc return in C and C++?

1017

---

Difference between function overloading and function overriding.

1069

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What are pass by value and pass by reference?what is the disadvantage of pass by value?

995

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There is a base class sub, with a member function fnsub(). There are two classes super1 and super2 which are sub classes of the base class sub.if and pointer object is created of the class sub which points to any of the two classes super1 and super2, if fnsub() is called which one will be inoked?

999

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What is the 4 difference between delete[] and delete?

1023

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