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Is this conversion type safe
vector<int*> a;
const vector<const int*>& b = reinterpret_cast<const vector<const int*>&>(a);
A static cast obviously doesnt work in this case because the template argument is changing. But by doing this reinterpret cast, I am just adding constness to essentially the same type. So should this be safe for all practical purposes?
Like any use of
reinterpret_castto convert a reference to an unrelated type, it gives undefined behaviour, and so is not safe unless you define “safe” to mean “works on my compiler”.