cue eval -ic bounds.cue
cmp stdout expect-stdout-cue

-- frontmatter.toml --
title = "Bounds"
description = ""

-- text.md --
Bounds define a lower bound, upper bound, or inequality for a certain value.
They work on numbers, strings, bytes, and and null.

The bound is defined for all values for which the corresponding comparison
operation is define.
For instance `>5.0` allows all floating point values greater than `5.0`,
whereas `<0` allows all negative numbers (int or float).

-- bounds.cue --
rn :: >=3 & <8        // type int | float
ri :: >=3 & <8 & int  // type int
rf :: >=3 & <=8.0     // type float
rs :: >="a" & <"mo"

a: rn & 3.5
b: ri & 3.5
c: rf & 3
d: rs & "ma"
e: rs & "mu"

r1: rn & >=5 & <10

-- expect-stdout-cue --
a:  3.5
b:  _|_ // conflicting values ri and 3.5 (mismatched types int and float)
c:  3
d:  "ma"
e:  _|_ // invalid value "mu" (out of bound <"mo")
r1: >=5 & <8