core/option

Library guide · API index and notation

This page is generated from the bundled library in this checkout. Signatures and adjacent source comments are reproduced below; the linked guide explains usage, storage, failures, and platform support.

import "core/option"

Names used in signatures

Unqualified names denote this package’s types (including other source files in the same package), language built-ins, or generic parameters such as T. Qualified names use the import aliases below. These aliases belong to the library source; import a dependency yourself to use its alias in your program.

take

Function · Source

Move the payload out while leaving an empty option in its original place.

pub fn take<T>(value: &mut Option<T>) -> Option<T>

replace

Function · Source

pub fn replace<T>(value: &mut Option<T>, replacement: T) -> Option<T>

unwrap_or

Function · Source

pub fn unwrap_or<T>(value: Option<T>, fallback: T) -> T