Function with_precision 

pub fn with_precision(x: &DBig, precision: usize) -> DBig

Return x rebound to the requested decimal precision.

This delegates to dashu_float::FBig::with_precision, which returns an dashu_base::Approximation indicating whether the rebind was exact (the new precision was at least the old digit count) or inexact (digits were rounded off). This helper discards that distinction and returns the rounded value directly. Use the raw dashu-float API if you need the inexact-flag.

precision == 0 is unlimited precision in dashu-float’s vocabulary, which is also passed through unchanged.

Examples

use std::str::FromStr;
use oxinum_float::{precision::with_precision, DBig};

let a = DBig::from_str("1.234").expect("parse 1.234");
let a100 = with_precision(&a, 100);
assert_eq!(a100.precision(), 100);