Compiler error on array declaration?

Question

How do I go about fixing these three errors?

• error C2057: expected constant expression
• error C2466: cannot allocate an array of constant size 0
• e

Answer 1

error C2057: expected constant expression

You can't declare randomTickets like that because the dimensions of the array need to be known at compile time. tickets is not a compile time constant and therefore you have the error. Consider using std::vector:

std::vector> randomTickets(tickets, std::vector(SIZE));

Alternatively, you can nest a std::array since SIZE is constant and known at compile time:

std::vector> randomTickets(tickets);

The other errors are resolved by fixing this one.