Function fiat_crypto::p434_64::fiat_p434_sub

pub fn fiat_p434_sub(
    out1: &mut fiat_p434_montgomery_domain_field_element, 
    arg1: &fiat_p434_montgomery_domain_field_element, 
    arg2: &fiat_p434_montgomery_domain_field_element
)

The function fiat_p434_sub subtracts two field elements in the Montgomery domain.

Preconditions: 0 ≤ eval arg1 < m 0 ≤ eval arg2 < m Postconditions: eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) - eval (from_montgomery arg2)) mod m 0 ≤ eval out1 < m