On Thursday, 30 December 2021 at 01:04:10 UTC, Ali Çehreli wrote:
2) Unlike the examples there, I think the parameter should most
usefully be defined as 'const' unless there is a special reason:
struct S {
// const(S) instead of S:
this(ref const(S) that) {
}
}
Do you agree?
When the compiler generates a copy constructor for you, it always
qualifies both the source and destination objects with `inout`:
https://dlang.org/spec/struct.html#implicit-copy-constructors
Therefore, when you write your own copy constructors, you should
always use `inout` if possible, so that compiler-generated copy
constructors will be able to copy instances of your struct that
appear as members of other structs.
