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Continue ReadingC++ Interview Question 17 Answer
Answer This question is compilable and deterministic. Its output is “B”. Explanation The “trick” here is that B::f() is called even though it is private. As §11.5.2 in the standard […]
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Answer This question is compilable and deterministic. Its output is “abBA”. Explanation The base class constructor is called before the inherited constructor. The inherited destructor is called before the base […]
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Answer This question is compilable and deterministic. Its output is “abBA”. Explanation Member variables are initialized before the constructor is called. The destructor is called before member variables are destroyed. […]
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Answer This question is compilable and deterministic. Its output is “acabBA”. Explanation Static local variables are initialized the first time control passes through their declaration. The first time foo() is […]
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Answer This question is compilable and deterministic. Its output is “abcBCA”. Explanation §3.6.2¶4 in the standard: “It is implementation-defined whether the dynamic initialization of a non-local variable with static storage […]
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Answer This question is compilable and deterministic. Its output is “acbBCA”. Explanation §3.6.2¶4 in the standard: “It is implementation-defined whether the dynamic initialization of a non-local variable with static storage […]
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Answer This question is compilable and deterministic. Its output is “0”. Explanation Since a is a static local variable, it is automatically initialized to its default value, 0. This would […]
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Answer This question is compilable and deterministic. Its output is “0”. Explanation Since a has static storage duration and no initializer, it is guaranteed to be zero-initialized. Had a been […]
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Answer This question is compilable and deterministic. Its output is “428”. Explanation When f() is called with a as both parameters, both arguments refer to the same variable. This is […]
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