pub fn fr_opp(
out1: &mut FrMontgomeryDomainFieldElement,
arg1: &FrMontgomeryDomainFieldElement,
)
Expand description
The function fr_opp negates a field element in the Montgomery domain.
Preconditions: 0 ≤ eval arg1 < m Postconditions: eval (from_montgomery out1) mod m = -eval (from_montgomery arg1) mod m 0 ≤ eval out1 < m