.vscode/settings.json

@@ -1,5 +0,0 @@
-{
-    "files.associations": {
-        "typeinfo": "c"
-    }
-}

data/students.test.txt

@@ -5,4 +5,25 @@ Computer
 88
 98
 52
-95
+95
+SS
+323
+SC
+3
+2
+4
+2
+Sambo2
+73823
+MSK2
+3
+3
+54
+2
+SS
+SS3
+212
+3
+5
+3
+2

work1/single.c

@@ -1,10 +1,8 @@
 #include "stdio.h"
 #include "stdlib.h"
-#include "string.h"
 
 #define BUFFER_SIZE 128
 #define MAX_NO_OF_UNITS 4
-#define NAME_SIZE 20
 
 const char *FILE_STUDENT_DATA_PATH = "./data/students.test.txt";
 
@@ -38,8 +36,6 @@ typedef struct student_tag STUDENT;
 void display_menu();
 void print_welcome();
 void print_student(STUDENT *student);
-void release(STUDENT *data);
-STUDENT *search_student_by_name_or_id(char search_key[NAME_SIZE]);
 
 // core functions
 void display_students();
@@ -104,9 +100,13 @@ void print_welcome()
 
 void display_students()
 {
+    printf("\n");
+
     read_file();
 
-    STUDENT *student = head;
+    STUDENT *student;
+
+    student = head;
 
     if (student == NULL)
     {
@@ -114,34 +114,32 @@ void display_students()
         return;
     }
 
+    printf("\n================ Student Details ================\n");
+
     print_student(student);
+
+    while (student->next != NULL)
+    {
+        printf("\n");
+        student = student->next;
+        print_student(student);
+    }
 }
 
 void print_student(STUDENT *student)
 {
-    printf("\n================ Student Details ================\n");
-    while (student != NULL)
+    printf("Student Name: %s\n", student->student_info.name);
+    printf("Student ID: %s\n", student->student_info.id);
+    printf("Course Name: %s\n", student->course_info.course_name);
+    printf("No of units: %d\n", student->course_info.no_of_units);
+
+    printf("Marks: [ ");
+    for (int i = 0; i < student->course_info.no_of_units; i++)
     {
-        printf("\n");
-        printf("Student Name: %s\n", student->student_info.name);
-        printf("Student ID: %s\n", student->student_info.id);
-        printf("Course Name: %s\n", student->course_info.course_name);
-        printf("No of units: %d\n", student->course_info.no_of_units);
-
-        printf("Marks: [ ");
-        for (int i = 0; i < student->course_info.no_of_units; i++)
-        {
-            printf("%d ", student->course_info.marks[i]);
-        }
-        printf("]\n");
-        printf("Avg: %.2f\n", student->course_info.avg);
-        student = student->next;
+        printf("%d ", student->course_info.marks[i]);
     }
-
-    // clean up the memory
-    // after output the data
-    // because we don;t need it anymore after output
-    release(student);
+    printf("]\n");
+    printf("Avg: %.2f\n", student->course_info.avg);
 }
 
 void display_menu()
@@ -159,11 +157,11 @@ void add_student(char student_name[20], char student_id[10], char course_name[20
     STUDENT *temp, *iterator;
     temp = (struct student_tag *)malloc(sizeof(struct student_tag));
     PERSON info;
-    memcpy(info.name, student_name, 20);
-    memcpy(info.id, student_id, 10);
+    strncpy(info.name, student_name, 20);
+    strncpy(info.id, student_id, 10);
 
     COURSE course;
-    memcpy(course.course_name, course_name, 20);
+    strncpy(course.course_name, course_name, 20);
     course.no_of_units = no_of_units;
     // memcpy(course.marks, marks);
 
@@ -217,36 +215,7 @@ int count()
 
 void search_student()
 {
-    char search_key[NAME_SIZE];
-
-    printf("Enter student name or id to search: ");
-    scanf("%s", &search_key);
-
-    STUDENT *found_student = search_student_by_name_or_id(search_key);
-    if (found_student == NULL)
-    {
-        printf("No student found!");
-        return;
-    }
-
-    print_student(found_student);
-}
-
-STUDENT *search_student_by_name_or_id(char search_key[NAME_SIZE])
-{
-    STUDENT *temp = head;
-
-    while (temp != NULL)
-    {
-        if (strcmp(temp->student_info.name, search_key) == 0 || strcmp(temp->student_info.id, search_key) == 0)
-        {
-            printf("\nSearch found with key: %s\n", search_key);
-            return temp;
-        }
-        temp = temp->next;
-    }
-
-    return NULL;
+    printf("\nNot implement yet!");
 }
 
 void find_maximum()
@@ -283,9 +252,9 @@ again:
     printf("Enter no of units: ");
     scanf("%d", &no_of_units);
 
-    if (no_of_units > MAX_NO_OF_UNITS && no_of_units <= 0)
+    if (no_of_units > MAX_NO_OF_UNITS)
     {
-        printf("you cannot input the units bigger than %d or less than 0\n", MAX_NO_OF_UNITS);
+        printf("you cannot input the units bigger than %d\n", MAX_NO_OF_UNITS);
         getchar();
         goto again;
     }
@@ -325,17 +294,16 @@ again:
 
 void read_file()
 {
-    // release nodes
-    // we need to clean up the memory
-    if (head != NULL)
+    // free the nodes
+    // because it can be use in memory
+    // we need to clear it first
+    // before we re-initailize the new data
+    STUDENT *temp;
+    while (head != NULL)
     {
-        STUDENT *temp;
-        while (head != NULL)
-        {
-            temp = head;
-            head = head->next;
-            free(temp);
-        }
+        temp = head;
+        head = head->next;
+        free(temp);
     }
 
     FILE *file;
@@ -407,24 +375,4 @@ void quite()
 {
     printf("\nGoodbye!");
     exit(EXIT_SUCCESS);
-}
-
-void release(STUDENT *data)
-{
-    if (data == NULL)
-    {
-        return;
-    }
-
-    // free the nodes
-    // because it can be use in memory
-    // we need to clear it first
-    // before we re-initailize the new data
-    STUDENT *temp;
-    while (data != NULL)
-    {
-        temp = data;
-        data = data->next;
-        free(temp);
-    }
 }