Setting struct as default parameter of a function using struct literal?

[Salih Dincer]

On Monday, 11 September 2023 at 20:17:09 UTC, H. S. Teoh wrote:
>
> Someone should seriously come up with a way of eliminating the 
> repeated type name in default parameters.

Why not allow it to be flexible enough by using a template 
parameter?

```d
enum Options : bool
{
   silenceErrorsOff, silenceErrorsOn
}

struct Opts
{
   bool silenceErrors;
}

void someFunction(T)(T option = T())
{
   import std.stdio;
   writeln(cast(bool)option); // true
}

void main()
{
   Opts o;
   someFunction(o.silenceErrors = true);

   with(Options)
   someFunction(silenceErrorsOn);
}
```
SDB at 79