mpdec

Rust wrapper around libmpdec — a high-performance C library for arbitrary-precision decimal floating point arithmetic.

Built on top of raw FFI bindings (mpdec-sys), this crate provides idiomatic Rust types and operations for working with decimal numbers with precise rounding behavior and conformance to the General Decimal Arithmetic Specification.

Example

use std::str::FromStr;
use mpdec::Decimal;

fn main() {
    let a = Decimal::from_str("1.2345").unwrap();
    let b = Decimal::from_str("2.0000").unwrap();
    let c = a * b;
    println!("Result: {}", c);  // Result: 2.4690
}