Added Default implementation for generic BuildHasher

axiomhq · Sep 9, 2024 · 5d630a0 · 5d630a0
1 parent ccaf3f9
commit 5d630a0
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Showing 2 changed files with 6 additions and 6 deletions.
diff --git a/src/h2b.rs b/src/h2b.rs
@@ -12,19 +12,19 @@ use crate::AHasherDefaultBuilder;
 /// different numbers of sub streams.
 ///
 /// Both the hasher and the sub stream size siaz can be customized, by default it uses `AHasherBuilder` and `M256`
-#[derive(Debug, Eq, PartialEq, Hash, Clone)]
 #[cfg_attr(feature = "mem_dbg", derive(mem_dbg::MemDbg, mem_dbg::MemSize))]
+#[derive(Debug, Eq, PartialEq, Hash, Clone)]
 pub struct HyperTwoBits<SKETCH: Sketch = M256, HASH: BuildHasher = AHasherDefaultBuilder> {
     hash: HASH,
     sketch: SKETCH,
     count: u32,
     t: u32,
 }
 
-impl<SKETCH: Sketch> Default for HyperTwoBits<SKETCH> {
+impl<SKETCH: Sketch, H: Default + BuildHasher> Default for HyperTwoBits<SKETCH, H> {
     fn default() -> Self {
         Self {
-            hash: AHasherDefaultBuilder::default(),
+            hash: H::default(),
             sketch: SKETCH::default(),
             count: 0,
             t: 1,

diff --git a/src/h3b.rs b/src/h3b.rs
@@ -12,19 +12,19 @@ use crate::AHasherDefaultBuilder;
 /// different numbers of sub streams.
 ///
 /// Both the hasher and the sub stream size siaz can be customized, by default it uses `AHasherBuilder` and `M256`
-#[derive(Debug, Eq, PartialEq, Hash, Clone)]
 #[cfg_attr(feature = "mem_dbg", derive(mem_dbg::MemDbg, mem_dbg::MemSize))]
+#[derive(Debug, Eq, PartialEq, Hash, Clone)]
 pub struct HyperThreeBits<SKETCH: Sketch = M256, HASH: BuildHasher = AHasherDefaultBuilder> {
     hash: HASH,
     sketch: SKETCH,
     count: u32,
     t: u32,
 }
 
-impl<SKETCH: Sketch> Default for HyperThreeBits<SKETCH> {
+impl<SKETCH: Sketch, H: Default + BuildHasher> Default for HyperThreeBits<SKETCH, H> {
     fn default() -> Self {
         Self {
-            hash: AHasherDefaultBuilder::default(),
+            hash: H::default(),
             sketch: SKETCH::default(),
             count: 0,
             t: 1,