Geek asks and answers

Why do data sizes change as the operating system changes?

This question was asked to me in an interview that the size charis 2 bytes in some operating system, but in some operating system it is 4 bytes or different.

Why is this so?

Why is it different from other fundamental types, such as int?

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2 answers

It was probably a trick. sizeof(char) always .

If the size is different, probably due to an inappropriate compiler, in which case the question should be about the compiler, and not about the C or C ++ language.

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