QWhat happens if you access an array index outside its size in C++?
Question Info
Choose the Best Option
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Explanation
In C++, accessing an array index outside its declared size does not automatically give a compiler error or a guaranteed runtime error.
Instead, it results in undefined behavior.
This means:
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The program may print a garbage value
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It may crash
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Or it may seem to work incorrectly
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The behavior can vary from system to system
C++ does not perform bounds checking on arrays.
Correct Answer: D) Undefined behavior
Description:
Accessing an array index beyond its size leads to unpredictable results, which is called undefined behavior in C++.
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