Module option

const equivalents of Option methods.

Macros

• and_then
  A const equivalent of Option::and_then
• filter
  A const equivalent of Option::filter
• flatten
  A const equivalent of Option::flatten
• map
  A const equivalent of Option::map
• ok_or
  A const equivalent of Option::ok_or
• ok_or_else
  A const equivalent of Option::ok_or_else
• or_else
  A const equivalent of Option::or_else
• unwrap
  A const equivalent of Option::unwrap
• unwrap_or
  A const equivalent of Option::unwrap_or
• unwrap_or_else
  A const equivalent of Option::unwrap_or_else

Structs

• NONE
  Usable to do [None::<T>; LEN] when T is non-Copy.

Functions

• copied
  A const equivalent of the Option::copied method.