[Solved] Contagion program, Matrices and Syntax issue

Question

= is the structural equality operator. To set an array element you need to use <-.

Also, you should almost never use == because it tests for physical equality, i.e. that references point to the same address in memory. For comparing bools it doesn’t strictly matter, because they’re not pointers, but you should get into the habit of using = instead to avoid surprises in the future.

Accepted Answer

= is the structural equality operator. To set an array element you need to use <-.

Also, you should almost never use == because it tests for physical equality, i.e. that references point to the same address in memory. For comparing bools it doesn’t strictly matter, because they’re not pointers, but you should get into the habit of using = instead to avoid surprises in the future.