Function extern_spec_Sub__ref_u128__ref_u128_sub 

pub fn extern_spec_Sub__ref_u128__ref_u128_sub(self_: &u128, rhs: &u128) -> u128

extern spec for <&u128 as Sub<&u128>>::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@