pub fn parse_val<I, F>(text: &str) -> ExResult<FlatExVal<I, F>>
Expand description
feature = "value"
- Parses a string into an expression of type
FlatExVal
with datatype Val
.
let expr = parse_val::<i32, f64>("x^y")?;
let res = expr.eval(&[Val::Float(2.0), Val::Int(3)])?.to_float()?;
assert!( (res - 8.0).abs() < 1e-12);