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APP_Framework/Applications/app_test/test_hash/test_hash.c

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+/*
+* Copyright (c) 2020 AIIT XUOS Lab
+* XiUOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*        http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+/**
+ * @brief Priv-shell Command definition 
+ * 
+ * @param _func Command function 
+ * @param _desc Command description 
+ * @param _attr Command attributes if need
+ */
+#include <stdio.h>
+#include <string.h>
+// #include <user_api.h>
+#include <transform.h>
+// hash code beginning
+#include<stdio.h>  
+#include<stdlib.h>  
+    
+#define HASHSIZE 12  
+#define NULLKEY -32768  
+typedef struct  
+{  
+    int *elem;  
+    int count;  
+}HashTable;  
+int m=0;  
+  
+//初始化散列表  
+int InitHashTable(HashTable *H)  
+{  
+    int i;  
+    m=HASHSIZE;  
+    H->count=m;  
+    H->elem=(int*)malloc(m*sizeof(int));  
+    for(i=0;i<m;i++)  
+        H->elem[i]=NULLKEY;  
+    return 1;  
+}  
+//散列函数  
+int Hash(int key)  
+{  
+    return key%m;  
+}   
+//插入关键字进入散列表  
+void InsertHash(HashTable *H,int key)  
+{  
+    int addr=Hash(key);  
+    while(H->elem[addr]!=NULLKEY)  
+       addr=(addr+1)%m;  
+    H->elem[addr]=key;  
+}   
+     
+//散列表查找关键字  
+int SearchHash(HashTable H,int key,int *addr)  
+{  
+    *addr=Hash(key);  
+    while(H.elem[*addr]!=key)  
+    {  
+        *addr=(*addr+1)%m;  
+        if(H.elem[*addr]==NULLKEY||*addr==Hash(key))  
+        {  
+            return -1;  
+        }  
+    }  
+    return *addr;  
+}     
+
+
+extern int FrameworkInit();
+extern void ApplicationOtaTaskInit(void);
+int main(void)
+{
+
+	int a[12]={12,67,56,16,25,37,22,29,15,47,48,34};
+    HashTable H;  
+    int i;  
+    InitHashTable(&H);  
+    printf("The initial array is as follows:\n");  
+    for(i=0;i<m;i++)  
+        printf("%d,",a[i]); 
+    for(i=0;i<m;i++)  
+        InsertHash(&H,a[i]);  
+    printf("\nThe resulting hash table is:\n");  
+    for(i=0;i<m;i++)
+    {
+        printf("%d,",H.elem[i]); 
+    } 
+    int addr,j;  
+    j=SearchHash(H,a[5],&addr);  
+    
+    printf("搜索到a[5]的地址是：%d\n",j);  
+
+
+
+	FrameworkInit();
+#ifdef APPLICATION_OTA
+	ApplicationOtaTaskInit();
+#endif
+    return 0;
+}
+// int cppmain(void);