Remove algorithms

Author: cuviper

src/biguint.rs

@@ -19,7 +19,6 @@ mod division;
 mod multiplication;
 mod subtraction;
 
-mod algorithms;
 mod bits;
 mod convert;
 mod monty;
@@ -32,7 +31,6 @@ mod arbitrary;
 #[cfg(feature = "serde")]
 mod serde;
 
-use self::algorithms::cmp_slice;
 pub(crate) use self::convert::to_str_radix_reversed;
 
 /// A big unsigned integer type.
@@ -89,6 +87,17 @@ impl Ord for BigUint {
     }
 }
 
+#[inline]
+fn cmp_slice(a: &[BigDigit], b: &[BigDigit]) -> Ordering {
+    debug_assert!(a.last() != Some(&0));
+    debug_assert!(b.last() != Some(&0));
+
+    match Ord::cmp(&a.len(), &b.len()) {
+        Ordering::Equal => Iterator::cmp(a.iter().rev(), b.iter().rev()),
+        other => other,
+    }
+}
+
 impl Default for BigUint {
     #[inline]
     fn default() -> BigUint {

src/biguint/algorithms.rs

@@ -1,7 +1,6 @@
-use super::algorithms::cmp_slice;
 #[cfg(not(u64_digit))]
 use super::u32_from_u128;
-use super::{biguint_from_vec, BigUint};
+use super::{biguint_from_vec, cmp_slice, BigUint};
 
 use crate::big_digit::{self, BigDigit};
 use crate::Sign::{self, Minus, NoSign, Plus};