Alloy Book

Comparisons and equivalence

Example: comparison_equivalence

Example

To run this example:

• Clone the examples repository: git clone git@github.com:alloy-rs/examples.git
• Run: cargo run --example comparison_equivalence

//! Example of comparison and equivalence of `U256` instances.

use alloy::primitives::U256;
use eyre::Result;

/// `U256` implements traits in `std::cmp`, that means `U256` instances
/// can be easily compared using standard Rust operators.
fn main() -> Result<()> {
    // a == b
    let a = U256::from(100_u32);
    let b = U256::from(100_u32);
    assert!(a == b);

    // a < b
    let a = U256::from(1_u32);
    let b = U256::from(100_u32);
    assert!(a < b);

    // a <= b
    let a = U256::from(100_u32);
    let b = U256::from(100_u32);
    assert!(a <= b);

    // a > b
    let a = U256::from(100_u32);
    let b = U256::from(1_u32);
    assert!(a > b);

    // a >= b
    let a = U256::from(100_u32);
    let b = U256::from(100_u32);
    assert!(a >= b);

    // a == 0
    let a = U256::ZERO;
    assert!(a.is_zero());

    Ok(())
}

Find the source code on Github here.