Out variables, and I imagine the various sorts of tuples, are created on the stack. Structs can by stack-allocated, or they can be heap-allocated, which has per

Out variables, and I imagine the various sorts of tuples, are created on the stack. Structs can by stack-allocated, or they can be heap-allocated, which has performance considerations which may be important in a given program. This feels much more like a case of right tool for the job than anything else.