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by _kst_
34 days ago
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Your code: int a = 5;
int b = a++;
has well defined behavior. The first line initializes a to 5. The second initializes b to 5 and sets a to 6. (The language doesn't specify the order of the two operations of assigning a value to be and incrementing a, but in this case it doesn't matter.)Giving 13 for a++ + ++a is not a bug in the compiler. It's a bug in the code. The correct answer to "what does a++ + ++a do" is "it gets rejected in code review and replaced with code that expresses the actual intent. |
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