Differences of C and C++ Could you write a small program that will compile in C but not in C++ ? - 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. - Object Oriented Programming in C++ Interview Questions and Answers

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Question: Differences of C and C++
Could you write a small program that will compile in C but not in C++ ?

Answer: 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.

Category	Object Oriented Programming in C++ Interview Questions & Answers - Exam Mode / Learning Mode
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Question: Differences of C and C++
Could you write a small program that will compile in C but not in C++ ?

Answer:

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. Source: CoolInterview.com

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