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In the code below I would like array to be defined as an array of size x when the Class constructor is called. How can I do that?
class Class { public: int array[]; Class(int x) : ??? { } }
You can’t initialize the size of an array with a non-const dimension that can’t be calculated at compile time (at least not in current C++ standard, AFAIK).
I recommend using
std::vector<int>instead of array. It provides array like syntax for most of the operations.