Making bn no_std. Exposing miller_loop_batch and final_exponentiation. (#16)

src/fields/fp.rs

@@ -1,12 +1,12 @@
+use alloc::vec::Vec;
+use core::ops::{Add, Mul, Neg, Sub};
 use rand::Rng;
-use std::ops::{Add, Mul, Neg, Sub};
-use super::FieldElement;
+use fields::FieldElement;
+use arith::{U256, U512};
 
 #[cfg(feature = "rustc-serialize")]
 use rustc_serialize::{Decodable, Decoder, Encodable, Encoder};
 
-use arith::{U256, U512};
-
 macro_rules! field_impl {
     ($name:ident, $modulus:expr, $rsquared:expr, $rcubed:expr, $one:expr, $inv:expr) => {
         #[derive(Copy, Clone, PartialEq, Eq, Debug)]

src/fields/fq12.rs

@@ -1,7 +1,6 @@
-use fields::{const_fq, FieldElement, Fq, Fq2, Fq6};
-use std::ops::{Add, Mul, Neg, Sub};
+use core::ops::{Add, Mul, Neg, Sub};
 use rand::Rng;
-
+use fields::{const_fq, FieldElement, Fq, Fq2, Fq6};
 use arith::U256;
 
 fn frobenius_coeffs_c1(power: usize) -> Fq2 {

src/fields/fq2.rs

@@ -1,7 +1,6 @@
-use fields::{const_fq, FieldElement, Fq};
-use std::ops::{Add, Mul, Neg, Sub};
+use core::ops::{Add, Mul, Neg, Sub};
 use rand::Rng;
-
+use fields::{const_fq, FieldElement, Fq};
 use arith::{U256, U512};
 
 #[cfg(feature = "rustc-serialize")]

src/fields/fq6.rs

@@ -1,5 +1,5 @@
 use fields::{const_fq, FieldElement, Fq, Fq2};
-use std::ops::{Add, Mul, Neg, Sub};
+use core::ops::{Add, Mul, Neg, Sub};
 use rand::Rng;
 
 fn frobenius_coeffs_c1(n: usize) -> Fq2 {

src/fields/mod.rs

@@ -5,8 +5,8 @@ mod fq12;
 
 use arith::U256;
 use rand::Rng;
-use std::ops::{Add, Mul, Neg, Sub};
-use std::fmt::Debug;
+use core::ops::{Add, Mul, Neg, Sub};
+use alloc::fmt::Debug;
 
 pub use self::fp::{const_fq, Fq, Fr};
 pub use self::fq2::{Fq2, fq2_nonresidue};