Question

****Using C and only C****

I have some C code that has the function addRecord, to add a record to a linked list of records. However, when I run it, the program exits after asking the user to input the address. See picture below:

Enter the Record Details: Enter Account number:909 Enter The Name: jo pi Enter The Address ...Program finished with exit code o Press ENTER to exit console.

Here is my code:

#include<stdio.h>
#include<stdlib.h>
struct record
{
int accountno;
char name[25];
char address[80];
struct record* next;
};

void addRecord(struct record* newRecord) //Function For Adding Record at last in a SinglyLinkedList
{
struct record *current,*start,*temp; //DeclareStructure Record Variables,
//Allocating Dynamic Memory Location
if(newRecord == NULL)
{
printf("Failed to Allocate Memory");
}
else
{
printf("Enter the Record Details: \n"); //Reading The Record Details
printf("Enter Account number:");
scanf("%d",&newRecord->accountno);
printf("Enter The Name:");
scanf("%s",&newRecord->name);
printf("Enter The Address");
scanf("%s",&newRecord->address);
  
newRecord->next=NULL; //Pointing to Next Record to NULL

if(start==NULL)
{
start=newRecord; //Pointing Starting Record if Starting record is NULL
current=newRecord; //Current Record Becomes First Record
}
else
{
temp = start;
while(temp->next!=NULL)
{
temp = temp->next;
}
temp->next = newRecord;
}
}
}
int main()
{
struct record * test = (struct record *)malloc(sizeof(struct record));
addRecord(test);
  
return 0;
}

PLEASE FIX what is going wrong in my code. Your help is appreciated.

Answer 1

If you have any doubts, please give me comment...

#include <stdio.h>

#include <stdlib.h>

struct record

{

int accountno;

char name[25];

char address[80];

struct record *next;

};

struct record *start = NULL;

void addRecord(struct record *newRecord) //Function For Adding Record at last in a SinglyLinkedList

{

struct record *current, *temp; //DeclareStructure Record Variables,

//Allocating Dynamic Memory Location

if (newRecord == NULL)

{

printf("Failed to Allocate Memory");

}

else

{

printf("Enter the Record Details: \n"); //Reading The Record Details

printf("Enter Account number:");

scanf("%d", &newRecord->accountno);

printf("Enter The Name:");

scanf("\n%[^\n]s", newRecord->name);

printf("Enter The Address: ");

scanf("\n%[^\n]s", newRecord->address);

newRecord->next = NULL; //Pointing to Next Record to NULL

if (start == NULL)

{

start = newRecord; //Pointing Starting Record if Starting record is NULL

current = newRecord; //Current Record Becomes First Record

}

else

{

temp = start;

while (temp->next != NULL)

{

temp = temp->next;

}

temp->next = newRecord;

}

}

}

int main()

{

struct record *test = (struct record *)malloc(sizeof(struct record));

addRecord(test);

printf("\n\nAccount No: %d\nName: %s\nAddress: %s\n", test->accountno, test->name, test->address);

return 0;

}