Function extern_spec_Sub__ref_usize__ref_usize_sub 

pub fn extern_spec_Sub__ref_usize__ref_usize_sub(
    self_: &usize,
    rhs: &usize,
) -> usize

extern spec for <&usize as Sub<&usize>>::sub

This is not a real function: its only use is for documentation.

requires

$type::MIN@ <= self@ $op rhs@ && self@ $op rhs@ <= $type::MAX@

ensures

result@ == self@ $op rhs@