Feature gate: #![feature(option_array_transpose)]

This is a tracking issue for the option_array_transpose.

This feature permits going from an [Option<T>; N] to Option<[T; N]>.

Public API

// core::option
impl<T, const N: usize> [Option<T>; N] {
    fn transpose(self) -> Option<[T; N]>;
}

Steps / History

• Implementation: Add [Option<T>; N]::transpose #130829
• Final comment period (FCP)¹
• Stabilization PR

Unresolved Questions

• The operation is irreversible (contrary to the other transpose methods), should it be named differently? Add [Option<T>; N]::transpose #130829 (comment)