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Add Num.intCast documentation

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Nathan Kramer 2024-09-29 18:10:41 +10:00
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17
crates/compiler/builtins/roc/Num.roc
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@ -548,6 +548,23 @@ tau = 2 * pi
## [F64] or [F32] value, the returned string will be `"NaN"`, `"∞"`, or `"-∞"`.
##
toStr : Num * -> Str
## Convert an [Int] to a new [Int] of the expected type:
##
## ```roc
## # Casts a U8 to a U16
## x : U16
## x = Num.intCast 255u8
## ```
##
## In the case of downsizing, information is lost:
##
## ```roc
## # returns 0, as the bits were truncated.
## x : U8
## x = Num.intCast 256u16
## ```
##
intCast : Int a -> Int b
compare : Num a, Num a -> [LT, EQ, GT]