Macro fasteval::f64_eq

macro_rules! f64_eq {
    ($l:ident, $r:literal) => { ... };
    ($l:ident, $r:ident) => { ... };
    ($l:expr, $r:literal) => { ... };
    ($l:expr, $r:expr) => { ... };
}

Uses EPSILON to determine equality of two f64s.