Type Alias FieldCt 

pub type FieldCt<T> = Field<T, Ct>;

Alias for the Ct variant of Field. Equivalent to Field<T, Ct>. Reads naturally at construction sites and sidesteps the type-inference ambiguity that bare Field::new(modulus) hits — FieldCt::new(modulus) resolves unambiguously because the alias fixes P = Ct at the type level. Symmetric with FieldNct.

Aliased Type

pub struct FieldCt<T> { /* private fields */ }