Q
In C++, what happens when int a[5]; a[7] = 3; is executed?
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A
The array automatically grows
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B
Compilation error
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C
std::out_of_range is thrown
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D
Undefined behavior; there is no compile-time or runtime bounds check
Correct Answer:
D. Undefined behavior; there is no compile-time or runtime bounds check
Explanation:
Built-in arrays are not bounds-checked. std::vector::at() does check bounds and throws out_of_range.
