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2019년 1월 11일 금요일

linked queue

  1월 11, 2019    

"linkedqueue.h"
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#ifndef _LINKED_QUEUE_
#define _LINKED_QUEUE_
 
typedef struct Queue_Node_Type {
 
    int data;
    struct Queue_Node_Type* Pointer_Next;
} Queue_Node;
 
typedef struct Linked_Queue_Type {
 
    int Current_Element_Count;
    Queue_Node* Pointer_Front_Node;
    Queue_Node* Pointer_Rear_Node;
} Linked_Queue;
 
Linked_Queue* Create_Linked_Queue(void);
int Enqueue_Linked_Queue(Linked_Queue* Pointer_Queue, Queue_Node element);
Queue_Node* Dequeue_Linked_Queue(Linked_Queue* Pointer_Queue);
Queue_Node* Peek_Linked_Queue(Linked_Queue* Pointer_Queue);
int Is_Linked_Queue_Full(Linked_Queue* Pointer_Queue);
int Is_Linked_Queue_Empty(Linked_Queue* Pointer_Queue);
 
#endif // !_LINKED_QUEUE_
 
#ifndef _COMMON_QUEUE_DEFAULT_
#define _COMMON_QUEUE_DEFAULT_
 
#define TRUE    1
#define FALSE    0
 
#endif // !_COMMON_QUEUE_DEFAULT_
 
cs
"function.h"
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#ifndef _FUNCTION_
#define _FUNCTION_
 
#include "linkedqueue.h"
int Enqueue_Linked_Queue_Integer(Linked_Queue* Pointer_Queue, int data);
 
#endif // !_FUNCTION_
 
cs
"display.h"
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#ifndef _DISPLAY_
#define _DISPLAY_
 
#include "linkedqueue.h"
 
void Display_Linked_Queue(Linked_Queue* Pointer_Queue);
 
#endif // !_DISPLAY_
 
cs
"linkedqueue.c"
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "linkedqueue.h"
 
Linked_Queue* Create_Linked_Queue(void) {
 
    Linked_Queue* Pointer_Return = (Linked_Queue*)malloc(1 * sizeof(Linked_Queue));
    if ((Linked_Queue*)Pointer_Return == NULL) {
 
        printf("Error! Dynamic memory allocation, Create_Linked_Queue()\n");
        return FALSE;
    }
 
    (void*)memset((Linked_Queue*)Pointer_Return, 0, sizeof(Linked_Queue));
 
    return (Linked_Queue*)Pointer_Return;
}
 
int Enqueue_Linked_Queue(Linked_Queue* Pointer_Queue, Queue_Node element) {
 
    if ((Linked_Queue*)Pointer_Queue == NULL) {
 
        printf("Error! The linked queue is null. Enqueue_Linked_Queue()\n");
        return FALSE;
    }
 
    Queue_Node* Pointer_Node = (Queue_Node*)calloc(1, sizeof(Queue_Node));
    if ((Queue_Node*)Pointer_Node == NULL) {
 
        printf("Error! Dynamic memory allocation, Enqueue_Linked_Queue()\n");
        return FALSE;
    }
 
    *(Queue_Node*)Pointer_Node = *(Queue_Node*)&element;
    (Queue_Node*)Pointer_Node->Pointer_Next = NULL;
 
    if (Is_Linked_Queue_Empty((Queue_Node*)Pointer_Queue) == TRUE) {
 
        (Linked_Queue*)Pointer_Queue->Pointer_Front_Node = (Queue_Node*)Pointer_Node;
        (Linked_Queue*)Pointer_Queue->Pointer_Rear_Node = (Queue_Node*)Pointer_Node;
    }
    else {
 
        (Linked_Queue*)Pointer_Queue->Pointer_Rear_Node->Pointer_Next = (Queue_Node*)Pointer_Node;
        (Linked_Queue*)Pointer_Queue->Pointer_Rear_Node = (Queue_Node*)Pointer_Node;
    }
    (Linked_Queue*)Pointer_Queue->Current_Element_Count++;
 
    return TRUE;
}
 
Queue_Node* Dequeue_Linked_Queue(Linked_Queue* Pointer_Queue) {
 
    if ((Linked_Queue*)Pointer_Queue == NULL) {
 
        printf("Error! The linked queue is null. Dequeue_Linked_Queue()\n");
        return NULL;
    }
    else if (Is_Linked_Queue_Empty((Linked_Queue*)Pointer_Queue) != FALSE) {
 
        printf("Error! Dequeue_Linked_Queue()\n");
        return NULL;
    }
 
    Queue_Node* Pointer_Return = NULL;
    (Queue_Node*)Pointer_Return = (Linked_Queue*)Pointer_Queue->Pointer_Front_Node;
    (Linked_Queue*)Pointer_Queue->Pointer_Front_Node = (Linked_Queue*)Pointer_Queue->Pointer_Front_Node->Pointer_Next;
    (Queue_Node*)Pointer_Return->Pointer_Next = NULL;
 
    (Linked_Queue*)Pointer_Queue->Current_Element_Count--;
    if (Is_Linked_Queue_Empty((Linked_Queue*)Pointer_Queue) == TRUE) {
 
        (Linked_Queue*)Pointer_Queue->Pointer_Rear_Node = NULL;
    }
 
    return (Queue_Node*)Pointer_Return;
}
 
Queue_Node* Peek_Linked_Queue(Linked_Queue* Pointer_Queue) {
 
    if ((Linked_Queue*)Pointer_Queue == NULL) {
 
        printf("Error! The linked queue is null. Peek_Linked_Queue()\n");
        return NULL;
    }
    else if (Is_Linked_Queue_Empty((Linked_Queue*)Pointer_Queue) == TRUE) {
 
        printf("Error! Peek_Linked_Queue()\n");
        return NULL;
    }
 
    return (Linked_Queue*)Pointer_Queue->Pointer_Front_Node;
}
 
void Delete_Linked_Queue(Linked_Queue* Pointer_Queue) {
 
    if ((Linked_Queue*)Pointer_Queue == NULL) {
 
        printf("Error! The linked queue is null. Delete_Linked_Queue()\n");
        return;
    }
 
    Queue_Node* Pointer_Node = (Linked_Queue*)Pointer_Queue->Pointer_Front_Node;
    Queue_Node* Pointer_Delete_Node = NULL;
    while ((Queue_Node*)Pointer_Node != NULL) {
 
        (Queue_Node*)Pointer_Delete_Node = (Queue_Node*)Pointer_Node;
        (Queue_Node*)Pointer_Node = (Queue_Node*)Pointer_Node->Pointer_Next;
        free((Queue_Node*)Pointer_Delete_Node);
    }
    free((Linked_Queue*)Pointer_Queue);
 
    return;
}
 
int Is_Linked_Queue_Full(Linked_Queue* Pointer_Queue) {
 
    return FALSE;
}
 
int Is_Linked_Queue_Empty(Linked_Queue* Pointer_Queue) {
 
    if ((Linked_Queue*)Pointer_Queue == NULL) {
 
        return FALSE;
    }
    if ((Linked_Queue*)Pointer_Queue->Current_Element_Count == 0) return TRUE;
 
    return FALSE;
}
cs
"function.c"
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#include <stdio.h>
#include "function.h"
 
int Enqueue_Linked_Queue_Integer(Linked_Queue* Pointer_Queue, int data) {
 
    Queue_Node node = { 0, };
    node.data = data;
 
    return (int)Enqueue_Linked_Queue((Linked_Queue*)Pointer_Queue, node);
}
cs
"display.c"
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#include <stdio.h>
#include "display.h"
#include "linkedqueue.h"
 
void Display_Linked_Queue(Linked_Queue* Pointer_Queue) {
 
    if ((Linked_Queue*)Pointer_Queue == NULL) {
 
        printf("Error! The linked queue is null. Display_Linked_Queue()\n");
        return;
    }
 
    printf("Current number of node : %d\n", (Linked_Queue*)Pointer_Queue->Current_Element_Count);
    Queue_Node* Pointer_Node = (Linked_Queue*)Pointer_Queue->Pointer_Front_Node;
    int index = 0;
    while ((Queue_Node*)Pointer_Node != NULL) {
 
        printf("[%d]-[%d]\n", index++, (Queue_Node*)Pointer_Node->data);
        (Queue_Node*)Pointer_Node = (Queue_Node*)Pointer_Node->Pointer_Next;
    }
    return;
}
cs
"main.c"
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#include <stdio.h>
#include "display.h"
#include "function.h"
#include "linkedqueue.h"
 
int main(int argc, char** argv) {
 
    // create queue
    Linked_Queue* Pointer_Queue = Create_Linked_Queue();
    if ((Linked_Queue*)Pointer_Queue == NULL) return -1;
 
    // queue
    Enqueue_Linked_Queue_Integer((Linked_Queue*)Pointer_Queue, 1);
    Enqueue_Linked_Queue_Integer((Linked_Queue*)Pointer_Queue, 3);
    Enqueue_Linked_Queue_Integer((Linked_Queue*)Pointer_Queue, 4);
    Enqueue_Linked_Queue_Integer((Linked_Queue*)Pointer_Queue, 2);
    Enqueue_Linked_Queue_Integer((Linked_Queue*)Pointer_Queue, 9);
    Enqueue_Linked_Queue_Integer((Linked_Queue*)Pointer_Queue, 5);
    Enqueue_Linked_Queue_Integer((Linked_Queue*)Pointer_Queue, 2);
 
    Display_Linked_Queue((Linked_Queue*)Pointer_Queue);
 
    Queue_Node* Pointer_Node = Dequeue_Linked_Queue((Linked_Queue*)Pointer_Queue);
    if ((Linked_Queue*)Pointer_Node != NULL) {
 
        printf("Dequeue Value-[%d]\n", (Queue_Node*)Pointer_Node->data);
        free((Queue_Node*)Pointer_Node);
    }
 
    (Queue_Node*)Pointer_Node = Dequeue_Linked_Queue((Linked_Queue*)Pointer_Queue);
    if ((Linked_Queue*)Pointer_Node != NULL) {
 
        printf("Dequeue Value-[%d]\n", (Queue_Node*)Pointer_Node->data);
        free((Queue_Node*)Pointer_Node);
    }
    Display_Linked_Queue((Linked_Queue*)Pointer_Queue);
 
    (Queue_Node*)Pointer_Node = (Queue_Node*)Peek_Linked_Queue((Linked_Queue*)Pointer_Queue);
    if ((Linked_Queue*)Pointer_Node != NULL) {
 
        printf("Peek Value-[%d]\n", (Queue_Node*)Pointer_Node->data);
    }
    Display_Linked_Queue((Linked_Queue*)Pointer_Queue);
 
    Delete_Linked_Queue((Linked_Queue*)Pointer_Queue);
    (Linked_Queue*)Pointer_Queue = NULL;
 
    return 0;
}
cs

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