fix hash map (-> 0.19)

README.md

@@ -12,7 +12,7 @@ repositories {
 }
 
 dependencies {
-    implementation("me.alex_s168:blitz:0.17")
+    implementation("me.alex_s168:blitz:0.19")
 }
 ```
 

build.gradle.kts

@@ -5,7 +5,7 @@ plugins {
 }
 
 group = "me.alex_s168"
-version = "0.18"
+version = "0.19"
 
 repositories {
     mavenCentral()

src/main/kotlin/blitz/collections/BlitzHashMap.kt

@@ -1,5 +1,7 @@
 package blitz.collections
 
+import kotlin.math.abs
+
 class BlitzHashMap<K, V>(
     private val bucketCount: Int = 16,
     private val bucketSrc: DynBuckets<K, V>,
@@ -8,7 +10,7 @@ class BlitzHashMap<K, V>(
     private val buckets = Array(bucketCount) { bucketSrc.new() }
 
     override fun index(key: K): Index<K,V> =
-        IndexImpl(buckets[hash(key) % bucketCount], key)
+        IndexImpl(buckets[abs(hash(key)) % bucketCount], key)
 
     private inline fun index(idx: Index<K,V>) =
         idx as IndexImpl