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C Interview Questions and Answers

Ques. Differences of C and C++
Could you write a small program that will compile in C but not in C++ ?
Ans.
In C, if you can a const variable e.g.
const int i = 2;
you can use this variable in other module as follows
extern const int i;
C compiler will not complain.

But for C++ compiler u must write
extern const int i = 2;
else error would be generated.
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