rc6: fix clippy and add github actions

.github/workflows/rc6.yml

@@ -0,0 +1,59 @@
+name: rc6
+on:
+ pull_request:
+ paths:
+ - "rc6/**"
+ - "Cargo.*"
+ push:
+ branches: master
+
+defaults:
+ run:
+ working-directory: rc6
+
+env:
+ CARGO_INCREMENTAL: 0
+ RUSTFLAGS: "-Dwarnings"
+
+jobs:
+ build:
+ runs-on: ubuntu-latest
+ strategy:
+ matrix:
+ rust:
+ - 1.56.0 # MSRV
+ - stable
+ target:
+ - thumbv7em-none-eabi
+ - wasm32-unknown-unknown
+ steps:
+ - uses: actions/checkout@v3
+ - uses: RustCrypto/actions/cargo-cache@master
+ - uses: dtolnay/rust-toolchain@master
+ with:
+ toolchain: ${{ matrix.rust }}
+ targets: ${{ matrix.target }}
+ - run: cargo build --no-default-features --release --target ${{ matrix.target }}
+
+ minimal-versions:
+ uses: RustCrypto/actions/.github/workflows/minimal-versions.yml@master
+ with:
+ working-directory: ${{ github.workflow }}
+
+ test:
+ runs-on: ubuntu-latest
+ strategy:
+ matrix:
+ rust:
+ - 1.56.0 # MSRV
+ - stable
+ steps:
+ - uses: actions/checkout@v3
+ - uses: RustCrypto/actions/cargo-cache@master
+ - uses: dtolnay/rust-toolchain@master
+ with:
+ toolchain: ${{ matrix.rust }}
+ - run: cargo check --all-features
+ - run: cargo test --no-default-features
+ - run: cargo test
+ - run: cargo test --all-features

rc6/src/core/backend.rs

@@ -140,7 +140,7 @@ where
  pub fn encrypt(&self, mut block: InOut<'_, '_, Block<W>>) {
  let (mut a, mut b, mut c, mut d) = Self::words_from_block(block.get_in());
  let key = &self.key_table;
- let log_w = W::from((W::Bytes::USIZE as f64 * 8 as f64).log2() as u8);
+ let log_w = W::from((W::Bytes::USIZE as f32 * 8_f32).log2() as u8);
 
  b = b.wrapping_add(key[0]);
  d = d.wrapping_add(key[1]);
@@ -170,7 +170,7 @@ where
  pub fn decrypt(&self, mut block: InOut<'_, '_, Block<W>>) {
  let (mut a, mut b, mut c, mut d) = Self::words_from_block(block.get_in());
  let key = &self.key_table;
- let log_w = W::from((W::Bytes::USIZE as f64 * 8 as f64).log2() as u8);
+ let log_w = W::from((W::Bytes::USIZE as f32 * 8_f32).log2() as u8);
 
  c = c.wrapping_sub(key[2 * R::USIZE + 3]);
  a = a.wrapping_sub(key[2 * R::USIZE + 2]);