Defining two Typedefs with different cookies, based on a struct with a static array, leads to different types, which shares the static array.
/// --- code --- ///
import std.typecons;
import std.traits;
static assert(!is(MyEA == MyEB));
static assert(!is(MyEA == E));
static assert(!is(MyEB == E));
void main()
{
MyEA ea;
MyEB eb;
eb.tarr.length = 4;
assert(ea.tarr.ptr != eb.tarr.ptr); // line 14
assert(ea.tarr.length != eb.tarr.length); // line 15
}
struct T { size_t i; }
struct E
{
size_t i;
static T[] tarr;
}
alias MyEA = Typedef!(E, E.init, "A");
alias MyEB = Typedef!(E, E.init, "B");
/// --- code ends --- ///
Line 14 and 15 yields both an error, which is unexpected. See also
https://forum.dlang.org/thread/[email protected]
Comment #1 by robert.schadek — 2024-12-13T18:57:01Z