extern_spec_Sub_Instant_Instant_sub

creusot_contracts::std::time

Function extern_spec_Sub_Instant_Instant_sub 

Source 
pub fn extern_spec_Sub_Instant_Instant_sub(
    self_: Instant,
    other: Instant,
) -> Duration
Expand description

extern spec for Instant::sub

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

terminates

ghost

ensures 

self@ > other@ ==> result@ > 0

ensures 

self@ <= other@ ==> result@ == 0