[Issue 16164] struct(class)'s template is difficult to use the default type

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16164

--- Comment #1 from Tsukasa Sugawara <mixedavocado+dlang at gmail.com> ---

I received advice;
 " rewrite S to S!() "

work correctly, since I will change state to trivial.

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