Macro appro_eq::assert_appro_eq_rel 0.1.0
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macro_rules! assert_appro_eq_rel { ($a:expr, $b:expr) => { ... }; ($a:expr, $b:expr, $eps:expr) => { ... }; }
Asserts that the relative error of the two expressions is small enough.
You can optionally add an optional diff value. If you don't supply a diff value as an argument, Tolerance::tolerance() is the default used.
Examples
assert_appro_eq_rel!(1f64, 1.5f64, 0.6f64); // does not panic assert_appro_eq_rel!(1f64, 1.0 + 1e-12f64); // does not panic assert_appro_eq_rel!(vec![1f64, 1.0, 1.0], vec![1.0 + 1e-12f64, 1.0, 1.0 - 1e-13f64]); // does not panic
assert_appro_eq_rel!(1f64, 2f64); // panics