# 1.0.0[−][src]Macro core::assert_eq

    macro_rules! assert_eq {
        ($left:expr, $right:expr $(,)?) => { ... };
        ($left:expr, $right:expr, $($arg:tt)+) => { ... };
    }

Asserts that two expressions are equal to each other (using `PartialEq`).

On panic, this macro will print the values of the expressions with their debug representations.

Like `assert!`, this macro has a second form, where a custom panic message can be provided.

# Examples

    let a = 3;
    let b = 1 + 2;
    assert_eq!(a, b);

    assert_eq!(a, b, "we are testing addition with {} and {}", a, b);

Run