Shorthand for `Default::default()`

[scottmcm]

I doubt this would get anything as short as just ~.

Maybe this could be in the prelude

use std::default::Default::default;

(once that's possible).

Then it'd be

foo(v, default(), default(), 10);

which seems tolerable.

Of course, what I'd really want there is

Pre-pre-RFC: syntactic sugar for `Default::default()`

Thanks @spacekookie! I know is a long thread so it is a good time to summarize what the RFC I'll be writing will propose, particularly because it is removed from what I originally wrote: Language support for default values on structs through const expressions: struct Car { wheel_count: usize = 4; } Language support for partially defaulted structs: struct Person { name: String, age: i128 = 0; } Teach #[derive(Default)] to use the default values #[derive(Default)] struct P…

because once you have two "I don't care just do whatever" parameters you'll probably have more soon, so the best thing is to make it foo(v, .{ width: 10, .. }) instead of spamming in lots of ~, ~, ~, ~.