fasteval
macro_rules! f64_ne { ($l:ident, $r:literal) => { ... }; ($l:ident, $r:ident) => { ... }; ($l:expr, $r:literal) => { ... }; ($l:expr, $r:expr) => { ... }; }
Uses EPSILON to determine inequality of two f64s.
EPSILON
f64
This is exactly the same as saying !f64_eq(x,y) but it is slightly more efficient.
!f64_eq(x,y)