From 063b4b5dc7ff8480a0306cbd2218236343ad5278 Mon Sep 17 00:00:00 2001
From: Alex Page <alex@anpage.me>
Date: Wed, 21 Jun 2023 21:57:09 -0400
Subject: [PATCH] Remove unnecessary unsafes

---
 src/confid.rs | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/confid.rs b/src/confid.rs
index 0300e02..19e2d6d 100644
--- a/src/confid.rs
+++ b/src/confid.rs
@@ -69,7 +69,7 @@ static mut f: [uint64_t; 6] = [
     1_i32 as uint64_t,
 ];
 
-unsafe fn residue_add(x: uint64_t, y: uint64_t) -> uint64_t {
+fn residue_add(x: uint64_t, y: uint64_t) -> uint64_t {
     let mut z: uint64_t = x.wrapping_add(y);
     if z >= 0x16a6b036d7f2a79_u64 {
         z = z.wrapping_sub(0x16a6b036d7f2a79_u64) as uint64_t as uint64_t;
@@ -77,7 +77,7 @@ unsafe fn residue_add(x: uint64_t, y: uint64_t) -> uint64_t {
     z
 }
 
-unsafe fn residue_sub(x: uint64_t, y: uint64_t) -> uint64_t {
+fn residue_sub(x: uint64_t, y: uint64_t) -> uint64_t {
     let mut z: uint64_t = x.wrapping_sub(y);
     if x < y {
         z = z.wrapping_add(0x16a6b036d7f2a79_u64) as uint64_t as uint64_t;
@@ -112,14 +112,14 @@ fn ui128_quotient_mod(lo: u64, hi: u64) -> u64 {
     prod3lo >> 42_i32 | prod3hi << 22_i32
 }
 
-unsafe fn residue_mul(x: uint64_t, y: uint64_t) -> uint64_t {
+fn residue_mul(x: uint64_t, y: uint64_t) -> uint64_t {
     let mut hi: uint64_t = 0;
     let lo: uint64_t = umul128(x, y, &mut hi);
     let quotient: uint64_t = ui128_quotient_mod(lo, hi);
     lo.wrapping_sub(quotient.wrapping_mul(0x16a6b036d7f2a79_u64)) as uint64_t
 }
 
-unsafe fn residue_pow(x: uint64_t, mut y: uint64_t) -> uint64_t {
+fn residue_pow(x: uint64_t, mut y: uint64_t) -> uint64_t {
     if y == 0_i32 as u64 {
         return 1_i32 as uint64_t;
     }
@@ -142,7 +142,7 @@ unsafe fn residue_pow(x: uint64_t, mut y: uint64_t) -> uint64_t {
     res
 }
 
-unsafe fn inverse(mut u: uint64_t, mut v: uint64_t) -> uint64_t {
+fn inverse(mut u: uint64_t, mut v: uint64_t) -> uint64_t {
     let mut tmp;
     let mut xu: int64_t = 1_i32 as int64_t;
     let mut xv: int64_t = 0_i32 as int64_t;
@@ -162,11 +162,11 @@ unsafe fn inverse(mut u: uint64_t, mut v: uint64_t) -> uint64_t {
     xu as uint64_t
 }
 
-unsafe fn residue_inv(x: uint64_t) -> uint64_t {
+fn residue_inv(x: uint64_t) -> uint64_t {
     inverse(x, 0x16a6b036d7f2a79_u64 as uint64_t)
 }
 
-unsafe fn residue_sqrt(what: uint64_t) -> uint64_t {
+fn residue_sqrt(what: uint64_t) -> uint64_t {
     if what == 0 {
         return 0_i32 as uint64_t;
     }
@@ -794,7 +794,7 @@ unsafe fn divisor_mul128(
     }
 }
 
-unsafe fn rol(x: u32, shift: i32) -> u32 {
+fn rol(x: u32, shift: i32) -> u32 {
     x << shift | x >> (32_i32 - shift)
 }