Nim calls these subranges https://nim-lang.org/docs/manual.html#types-subrange-types https://nim-lang.org/docs/manual.html#types-subrange-types Subrange = ra

Nim calls these subranges https://nim-lang.org/docs/manual.html#types-subrange-types https://nim-lang.org/docs/manual.html#types-subrange-types Subrange = range[0..5] PositiveFloat = range[0.0..Inf]