add GetOrSet

hashmap/hashmap.go

@@ -0,0 +1,42 @@
+package hashmap
+
+import (
+	"474420502.top/eson/structure/sparse_array/array3"
+)
+
+type HashCode func(key interface{}) int
+type EqualsCode func(k1, k2 interface{}) int
+
+type HashMap struct {
+	growfactor int
+	table      *array3.Array3
+
+	GetHash  HashCode
+	IsEquals EqualsCode
+}
+
+type Bucket struct {
+}
+
+func HashInt(key interface{}) uint {
+	thekey := uint(key.(int))
+	hbit := thekey & 0xffffffff
+	lbit := (thekey & 0xffffffff00000000) >> 32
+	// log.Println(hbit)
+	// log.Println(lbit)
+	// log.Println()
+	return lbit ^ hbit
+}
+
+func New() *HashMap {
+	hm := &HashMap{}
+	hm.growfactor = 2
+	hm.table = array3.NewWithCap(hm.growfactor*2, hm.growfactor, hm.growfactor)
+	return hm
+}
+
+func (hm *HashMap) Put(key, value interface{}) {
+	hash := hm.GetHash(key)
+	index := hash % hm.table.Cap()
+	hm.table.Set(index, value)
+}

hashmap/hashmap_test.go

@@ -0,0 +1,7 @@
+package hashmap
+
+import "testing"
+
+func TestCount(t *testing.T) {
+	HashInt(123123131221)
+}