> It’s not clear if a value that is passed via pointer is intended to be mutated or not. (const-ness / mutability) (maybe it’s passed via pointer just because t

> It’s not clear if a value that is passed via pointer is intended to be mutated or not. (const-ness / mutability) (maybe it’s passed via pointer just because the size of the struct is large?) The dilemma is even richer than that -- what if the function call is inlined, with the struct known to be instantiated in the caller? If so, size of the struct doesn't matter. In C, inlining can be forced, so passing a struct by value can be assured to be economical. The programmer has no such option in Go.