Inconsistancy with Default. Mutable slices are mising

[WildCryptoFox]

Default is implemented for &'a [T] but not &'a mut [T]. Is there any reason for this? While writing mutually generic code, I needed exactly this. Alternatively the quick work around is to just have my own trait and implement it for both slices.

@rust-lang/libs

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My mutually generic code: option_mut and lense (currently working on making lenses mutually generic through the use of option_mut)

[Aatch]

/cc @rust-lang/libs

[Gankra]

Seems like a trivial omission. Easy to add, doesn't need an RFC.

[nxnfufunezn]

I'll take this on..

[Gankra]

@nxnfufunezn 🙀 It appears that @james-darkfox already picked it up and submitted a PR (see above).

[nxnfufunezn]

😞