const_cmp
macro_rules! const_cmp_for { ( slice; $left_slice:expr, $right_slice:expr $(, $($comparison:tt)* )? ) => { ... }; ( option; $left_opt:expr, $right_opt:expr $(, $($comparison:tt)* )? ) => { ... }; ( range; $left_range:expr, $right_range:expr $(, $($comparison:tt)* )? ) => { ... }; ( range_inclusive; $left_range:expr, $right_range:expr $(, $($comparison:tt)* )? ) => { ... }; }
Compares two slices for ordering, evaluating to a cmp::Ordering
cmp::Ordering