On Sunday, 14 January 2018 at 13:24:14 UTC, Heromyth wrote:
On Sunday, 14 January 2018 at 08:05:34 UTC, Temtaime wrote:
On Sunday, 14 January 2018 at 04:02:09 UTC, Heromyth wrote:
On Saturday, 13 January 2018 at 14:11:23 UTC, H. S. Teoh
wrote:
On Sat, Jan 13, 2018 at 12:22:17PM +0000, Heromyth via
Digitalmars-d wrote: [...]
https://run.dlang.io/is/RUHtqK
It's not ok dude
It runs because you don't use any variable inside the struct
and because struct members are simple functions with hidden
parameter
Thanks. It's really dangerous to use a pointer to struct!
I have created another test based on your code. See here
https://run.dlang.io/is/LOeMKG
I add *ref* in the constructor and add a new template fucntion
writerFor. So, it goes back the scenario in my first post.
Tester tester = new Tester(buildWriter()); // can't compile.
The compiler does the right thing.
Tester tester = writerFor(buildWriter()); // Here is a bug,
because the compiler takes this!
Am I right?
There's no bug in compiler.
"auto ref" can be NOT a reference. It depends on its parameter.
RValues are passed by value.
given
writerFor(buildWriter());
it becomes
auto writerFor(OutRange)(OutRange outRange) // NO REF, parameter
is on the stack
{
auto res = new Tester(outRange);
return res;
}
and after writerFor the returned object points on a variable
inside writerFor which already died
