A digit that does not meet the requirements of the
decimal numeric type.
- Xcode 10.2+
- Swift Standard Library
Scalars with this numeric type are often those that represent a decimal digit but would not typically be used to write a base-10 number, such as “④” (U+2463 CIRCLED DIGIT FOUR).
As of Unicode 6.3, any new scalars that represent numbers but do not meet the requirements of
decimal will have numeric type
numeric, and programs can treat