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fpotierlast Tuesday at 1:37 PM1 replyview on HN

void employee_set_age(struct Employee* employee, int newAge) { // Cast away the const and set it's value, the compiler should optimize this for you (int)&employee->age = newAge; }

I believe that "Casting away the const" is UB [1]

[1]: https://en.cppreference.com/w/c/language/const.html


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spacechild1last Tuesday at 2:03 PM

It's only UB if the pointed to object is actually const (in which case it might live in read-only memory).

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