What is realloc() and free()? What is difference between them?

1 Answers  

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How are the features of c++ different from c?

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What are pointer-to-members in C++? Give their syntax.

0 Answers   HAL,

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template<class T, class X> class Obj { T my_t; X my_x; public: Obj(T t, X x) : my_t(t), my_x(x) { } }; Referring to the sample code above, which one of the following is a valid conversion operator for the type T? a) T operator T () { return my_t; } b) T operator(T) const { return my_t; } c) operator(T) { return my_t; } d) T operator T (const Obj &obj) { return obj.my_t; } e) operator T () const { return my_t; }

1 Answers   Quark,

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Explain friend class?

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What do you mean by enumerated data type?

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What are templates? where we should use it?

2 Answers   Alcatel,

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Given the following seqment of code containing a group of nested if instructions: y = 9; if ((x==3) || (x == 5)) y++; else if (x == 2) y *= 2; else if (x == ) y-= 7; else y = 8; if the value of x is 4 before the nested IFs are executed, what is the value of y after the nested IFs are executed?

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Can a constructor be private?

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When a function is made inline. Write the situation where inline functions may not work.

2 Answers  

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What is class invariant in c++?

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What is c++ namespace?

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