Add DynDigest::box_clone() and Debug support

Author: onethumb

Cargo.toml

@@ -20,7 +20,7 @@ bench = true
 
 [dependencies]
 crc = "3"
-digest = "0.10"
+digest = {  version = "0.10", features = ["alloc"] }
 rand = "0.9"
 libc = "0.2.171"
 regex = "1.11.1"
@@ -45,6 +45,8 @@ name = "benchmark"
 harness = false
 
 [features]
+alloc = []
+
 # enable VPCLMULQDQ support in Rust for x86_64 using nightly toolchain builds
 vpclmulqdq = []
 

src/lib.rs

@@ -181,6 +181,7 @@ type CalculatorFn = fn(
 /// The `Digest` struct maintains the state of the CRC computation, including
 /// the current state, the amount of data processed, the CRC parameters, and
 /// the calculator function used to perform the CRC calculation.
+#[derive(Copy, Clone, Debug)]
 pub struct Digest {
     /// The current state of the CRC computation.
     state: u64,
@@ -243,6 +244,10 @@ impl DynDigest for Digest {
     fn output_size(&self) -> usize {
         self.params.width as usize / 8
     }
+
+    fn box_clone(&self) -> Box<dyn DynDigest> {
+        Box::new(self.clone())
+    }
 }
 
 impl Digest {

src/structs.rs

@@ -6,7 +6,7 @@ use crate::arch;
 use crate::traits::{CrcCalculator, CrcWidth};
 use crate::CrcAlgorithm;
 
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, Debug)]
 pub struct CrcParams {
     pub algorithm: CrcAlgorithm,
     pub name: &'static str,