Retail Outlet Managment System

Hi Board,

I am aware of the thread that already exists on this subject, but it hasn't been able to help me with the problems that I am experiencing. Thus, I decided to create a thread of my own. Basically, I'm having trouble understand the concept of reading information from a file. Does the file need to apart of the C project or just in the same location as the source file? I'm assuming that it just needs to be in the same location..

The other problem that I am experiencing is printing the values scanned from the file. Here is what I have coded so far:

Code:

---


#include <stdio.h>
#include <stdlib.h>

#define MAX_TBL_SIZE 30

void printCurrentStatus();

int main() {
   
    char filename[20];
   
    printf("Enter the name of the input file:\n");
    scanf("&#37;s", &filename);
   
    printCurrentStatus();
   
    system("PAUSE");
    return(0);
   
}

void printCurrentStatus() {
   
    FILE *ifp;
    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE];
    float unit_price[MAX_TBL_SIZE];
   
    ifp = fopen("retail.txt", "r");
   
    while((input_item_id[MAX_TBL_SIZE] != 0)||(input_item_stock[MAX_TBL_SIZE] != 0)||(unit_price[MAX_TBL_SIZE] != 0)) {
      fscanf(ifp, "%d", &input_item_id[MAX_TBL_SIZE]);
      fscanf(ifp, "%d", &input_item_stock[MAX_TBL_SIZE]);
      fscanf(ifp, "%f", &unit_price[MAX_TBL_SIZE]);
    }
   
    fclose(ifp);
   
    printf("\n            Current Status            \n");
    printf("Id      Stock      Price      Sufficient\n");
}

---

When I try to use the printf statement for each of the three arrays, nothing prints to the screen. However, my program runs smoothly with no errors whatsoever. If someone could help to explain to me how to print values from a file properly, I would greatly appreciate it. Thanks in advance!

- Hugh

A file that you access from a C program can be located anywhere. (And you don't usually add external files to your project, just source files that need to be compiled, or sometimes header files etc.)

However, when you specify a filename with no path like "file.txt" or with "./file.txt", then your program looks in the current working directory to find this file. The current working directory can vary, but it's usually the directory the executable is run from.

Code:

---

    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE];
    float unit_price[MAX_TBL_SIZE];
   
    ifp = fopen("retail.txt", "r");
   
    while((input_item_id[MAX_TBL_SIZE] != 0)||(input_item_stock[MAX_TBL_SIZE] != 0)\
||(unit_price[MAX_TBL_SIZE] != 0)) {
      fscanf(ifp, "%d", &input_item_id[MAX_TBL_SIZE]);
      fscanf(ifp, "%d", &input_item_stock[MAX_TBL_SIZE]);
      fscanf(ifp, "%f", &unit_price[MAX_TBL_SIZE]);
    }

---

It's always a good idea to check if fopen() failed. If it did, the file pointer it returns will be NULL (which is the same as 0).

You're not reading the information correctly. An array declared as array[N] has N elements, starting from 0 and ending at N-1. (That is, you can index array[0]..array[N-1], inclusive.) You're reading one past the end of the arrays. In addition, you keep reading into the same elements of the array.

What you want is to read into array[0], then array[1], etc. The easiest way to do this would perhaps be with a for loop. You need to keep a variable to index the arrays (one variable would do). Something like this.

Code:

---

for(x = 0; x < N; x ++) {
    if(fscanf(fp, "%d", &array[x]) != 1 || array[x] == 0) {
        break;
    }
}

---

Also, system("PAUSE") is unportable, inefficient, and insecure. Consider other methods of keeping your console window open, as outlined in the FAQ.

Ok, I'm definitely making progress, and I pretty much understand how my entire program works as of now..

Here is what I have coded:

Code:

---


#include <stdio.h>
#include <stdlib.h>

#define MAX_STRING_SIZE 20
#define MAX_TBL_SIZE 30

void printCurrentStatus(int* input_item_id[MAX_TBL_SIZE], int* input_item_stock[MAX_TBL_SIZE], float* input_unit_price[MAX_TBL_SIZE]);

int main() {
   
    FILE *ifp;
    char filename[MAX_STRING_SIZE];
    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE], i;
    float input_unit_price[MAX_TBL_SIZE];
   
    do {
      printf("Enter the name of the input file:\n");
      scanf("&#37;s", filename);
      ifp = fopen(filename, "r");
      if(ifp == NULL) {
        printf("Sorry, the file does not exist.\n");
        printf("\n");
      }
    }
    while(ifp == NULL);
   
    for(i=0; i<MAX_TBL_SIZE; i++) {
      fscanf(ifp, "%d", &input_item_id[i]);
      fscanf(ifp, "%d", &input_item_stock[i]);
      fscanf(ifp, "%f", &input_unit_price[i]);
    }
   
    printCurrentStatus(&input_item_id[MAX_TBL_SIZE], &input_item_stock[MAX_TBL_SIZE], &input_unit_price[MAX_TBL_SIZE]);
   
    system("PAUSE");
    return(0);
}

void printCurrentStatus(int* input_item_id[MAX_TBL_SIZE], int* input_item_stock[MAX_TBL_SIZE], float* input_unit_price[MAX_TBL_SIZE]) {
  printf("\n            Current Status            \n");
  printf("Id      Stock      Price      Sufficient\n");
  printf("%d      %d      %.2f\n", *input_item_id[MAX_TBL_SIZE], *input_item_stock[MAX_TBL_SIZE], *input_unit_price[MAX_TBL_SIZE]);
  printf("\n");
}

---

It's printing numbers from the file, but I'm doing something wrong since it is not printing the correct numbers. Any suggestions?

- Hugh

edit: My professor specified that I use the "system("PAUSE")" statement to freeze the window..

Code:

---

    printCurrentStatus(&input_item_id[MAX_TBL_SIZE], &input_item_stock[MAX_TBL_SIZE], &input_unit_price[MAX_TBL_SIZE]);

---

That's incorrect. You are passing the address of the element one past the last in the array. If you just want to pass the entire array, just name the array - no index.

Code:

---

  printf("%d      %d      %.2f\n", *input_item_id[MAX_TBL_SIZE], *input_item_stock[MAX_TBL_SIZE], *input_unit_price[MAX_TBL_SIZE]);

---

This is ALSO incorrect - again, you are using the size-constant, which means that you are using the element "one past the end".

You probably also want to use a loop to print ALL the values in your table.

Remember, if it says

Code:

---

char array[4];

---

you have four elements, but their index is 0, 1, 2, 3. It takes some getting used to, but that's how most things in computers are counted: first thing is zero, the next one, and so on.

Edit:
Your professor suggests (or specifies) things that are unportable (the function "system("PAUSE");" will not work on Linux, Solaris or just about any other non-MS based OS - unless you also add a "PAUSE" command to your system) and potentially harmful. What if one of your student friends decides to play a little trick and put a file called PAUSE.BAT in your source directory. This file contains "del *.*" - now instead of pausing, your files have gone... You can try it yourself, but put

Code:

---

Echo Hello 3MGFX

---

in a file called "pause.bat" and then put a "getchar()" after your call to system() to stop the app from "disappearing".

It is better to use getchar() to pause.

--
Mats

[edit] matsp and I seem to think alike. [/edit]

Quote:

---

edit: My professor specified that I use the "system("PAUSE")" statement to freeze the window..

---

Tell your professor to stick "system pause" into google. Here are some lengthier explanations of system("PAUSE")'s undesirability.
http://cpp.codenewbie.com/articles/c...SE-Page_1.html
http://www.gidnetwork.com/b-61.html

Your main() function looks quite good -- however, there are still a few problems with it.

Code:

---

    for(i=0; i<MAX_TBL_SIZE; i++) {
      fscanf(ifp, "&#37;d", &input_item_id[i]);
      fscanf(ifp, "%d", &input_item_stock[i]);
      fscanf(ifp, "%f", &input_unit_price[i]);
    }

---

So, are there always going to be MAX_TBL_SIZE entries in the file? Probably not. What you need to do is to stop reading in entries once you reach the end of the file. This can be achieved by checking the return value of fscanf().

The *scanf() functions return the number of format specifiers successfully read in, or EOF on error. This means that, with only one format specifier (like "%d"), it will return 0, 1, or EOF. Only when it returns 1 will it indicate success.

So, in your code, simply exit the loop when one of the fscanf()s returns something other than 1. Or, better yet, combine them like so:

Code:

---

    for(i=0; i<MAX_TBL_SIZE; i++) {
        if(fscanf(ifp, "%d%d%f", &input_item_id[i],
            &input_item_stock[i], &input_unit_price[i]) != 3) {

            break;  /* file error or EOF or invalid input */
        }
    }

---

Now, here's how you're calling printCurrentStatus():

Code:

---

printCurrentStatus(&input_item_id[MAX_TBL_SIZE], \
&input_item_stock[MAX_TBL_SIZE], &input_unit_price[MAX_TBL_SIZE]);

---

That's not what you want. You're passing the address of one past the last element in the array.

I'm guessing that printCurrentStatus() doesn't need to modify those arrays in any way. Very well. In that case, make the function like this:

Code:

---

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE],\
int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]);

---

Really. It works. Then call it like so:

Code:

---

printCurrentStatus(input_item_id, input_item_stock, input_unit_price);

---

Arrays are really quite simple to pass in this way. If you want to modify the values of the array in the function, you can do so. You very rarely need to use a parameter like int *array[N].

Now for printCurrentStatus(). Right now you're just printing one value, which is one past the end of the array (assuming you passed the beginning of the array to the function, which you didn't -- you passed one past the end again -- so now you're way beyond the end of the array). You probably want to print every element in the array, right?

Well, in order to do that, you need to first of all pass the number of elements in the array to the function. In main(), that's i-1. (Check to make sure i isn't 0 first.)

Then you can just use something like

Code:

---

for(i = 0; i < elements; i ++) {}

---

and print each item or whatever. The syntax is the same as in main, something like

Code:

---

printf("%d...", input_item_id[i], ...);

---

BTW:

Code:

---

        printf("Sorry, the file does not exist.\n");
        printf("\n");

---

You can simply do this if you choose.

Code:

---

        printf("Sorry, the file does not exist.\n\n");

---

Code:

---


#include <stdio.h>
#include <stdlib.h>

#define MAX_STRING_SIZE 20
#define MAX_TBL_SIZE 30

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]);

int main() {
   
    FILE *ifp;
    char filename[MAX_STRING_SIZE];
    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE], i;
    float input_unit_price[MAX_TBL_SIZE];
   
    do {
      printf("Enter the name of the input file:\n");
      scanf("&#37;s", filename);
      ifp = fopen(filename, "r");
      if(ifp == NULL) {
        printf("Sorry, the file does not exist.\n\n");
      }
    }
    while(ifp == NULL);
   
    for(i=0; i<MAX_TBL_SIZE; i++) {
      if(fscanf(ifp, "%d%d%f", &input_item_id[i], &input_item_stock[i], &input_unit_price[i]) != 3)
        break;
    }
   
    printCurrentStatus(input_item_id, input_item_stock, input_unit_price);
       
    system("PAUSE");
    return(0);
}

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]) {
 
  int i;
 
  printf("\n            Current Status            \n");
  printf("Id      Stock      Price      Sufficient\n");
  for(i=0; i<MAX_TBL_SIZE; i++) {
    printf("%d      %d        %.2f\n\n", input_item_id[i], input_item_stock[i], input_unit_price[i]);
  }
}

---

Works, but it prints too many numbers. Still reads input file after zeroes.

Quote:

---

Originally Posted by 3MGFX

Code:

---


#include <stdio.h>
#include <stdlib.h>

#define MAX_STRING_SIZE 20
#define MAX_TBL_SIZE 30

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]);

int main() {
   
    FILE *ifp;
    char filename[MAX_STRING_SIZE];
    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE], i;
    float input_unit_price[MAX_TBL_SIZE];

/* I don't understand this do while loop's test code. Do you have multiple files you need to
open or why do you want it to loop until the file pointer can't find the file, and returns NULL?
*/   

    do {
      printf("Enter the name of the input file:\n");
      scanf("&#37;s", filename); 
      ifp = fopen(filename, "r");
      if(ifp == NULL) {
        printf("Sorry, the file does not exist.\n\n");
      }
    }
    while(ifp == NULL);
   
    for(i=0; i<MAX_TBL_SIZE; i++) {
      if(fscanf(ifp, "%d%d%f", &input_item_id[i], &input_item_stock[i], &input_unit_price[i]) != 3)
        break;
    }
   
/* Can you show an example of the input file, and an example of what you want for output?
 I'm quite confused from just looking at the code.
*/

    printCurrentStatus(input_item_id, input_item_stock, input_unit_price);
       
    system("PAUSE");
    return(0);
}

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]) {
 
  int i;
 
  printf("\n            Current Status            \n");
  printf("Id      Stock      Price      Sufficient\n");
  for(i=0; i<MAX_TBL_SIZE; i++) {
    printf("%d      %d        %.2f\n\n", input_item_id[i], input_item_stock[i], input_unit_price[i]);
  }
}

---

Works, but it prints too many numbers. Still reads input file after zeroes.

---

Comments and questions are highlighted in the code, above.

Code:

---


#include <stdio.h>
#include <stdlib.h>

#define MAX_STRING_SIZE 20
#define MAX_TBL_SIZE 30

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]);

int main() {
   
    FILE *ifp;
    char filename[MAX_STRING_SIZE];
    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE], i;
    float input_unit_price[MAX_TBL_SIZE];
   
    do {
      printf("Enter the name of the input file:\n");
      scanf("&#37;s", filename);
      ifp = fopen(filename, "r");
      if(ifp == NULL) {
        printf("Sorry, the file does not exist.\n\n");
      }
    }
    while(ifp == NULL);
   
    for(i=0; i<MAX_TBL_SIZE; i++) {
      fscanf(ifp, "%d%d%f", &input_item_id[i], &input_item_stock, &input_unit_price);
      if(fscanf(ifp, "%d%d%f", &input_item_id[i], &input_item_stock, &input_unit_price) != 3) {
        break;
      }
    }
   
    printCurrentStatus(input_item_id, input_item_stock, input_unit_price);
       
    system("PAUSE");
    return(0);
}

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]) {
  printf("\n            CURRENT STATUS            \n");
  printf("Id      Stock      Price      Sufficient\n");
  printf("\n");
}

---

Ok, I cleaned up my code and I left the code in my function blank since I'm not sure how to write the loop.

This is what the sample input file looks like:

23 20 10.00
30 15 5.50
47 25 7.00
93 6 30.0
52 10 6.00
86 16 4.00
66 25 8.50
0 0 0
1
2 47
2 13
3 86 7
4 47 5
3 23 15
3 66 5
5
6
1
7
8

edit: I used a while loop to make sure that the user enters in a valid filename..

I'll take a look at your program in a bit.

Does the do while loop work for you, when you test it?

I grok the top part of the input file, but what's this part all about?

Quote:

---

1
2 47
2 13
3 86 7
4 47 5
3 23 15
3 66 5
5
6
1
7
8

---

Code:

---

#include <stdio.h>
#include <stdlib.h>

#define MAX_TBL_SIZE 30

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE], int i);

int main() {
   
    FILE *ifp;
    char filename[100];
    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE], i;
    float input_unit_price[MAX_TBL_SIZE];
   
    do {
      printf("Enter the name of the input file:\n");
      scanf("&#37;s", filename);
      ifp = fopen(filename, "r");
      if(ifp == NULL) {
        printf("Sorry, the file does not exist.\n\n");
      }
    }
    while(ifp == NULL);
   
    for(i=0; i<MAX_TBL_SIZE; i++) {
      if((input_item_id[i] == 1)||(input_item_stock[i] == 1)||(input_unit_price[i] == 1)) {
        break;
      }
      fscanf(ifp, "%d", &input_item_id[i]);
      fscanf(ifp, "%d", &input_item_stock[i]);
      fscanf(ifp, "%f", &input_unit_price[i]);
    }
   
    printCurrentStatus(input_item_id, input_item_stock, input_unit_price, i);
       
    system("PAUSE");
    return(0);
   
}

void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE], int i) {
  printf("\n            CURRENT STATUS            \n");
  printf("Id      Stock      Price      Sufficient\n");
  for(i=0; i<MAX_TBL_SIZE; i++) {
    printf("%d      %d        %.2f\n\n", input_item_id[i], input_item_stock[i], input_unit_price[i]);
  }
}

---

I have been working on this for a few hours, but I just can't seem to get pass this point. The above code outputs correctly up until the line "0 0 0." I just can't seem to get the program to stop reading in values at this marker. But this is what I have so far. I don't think I can concentrate on this any longer, but I'll be attacking this first thing tommorow morning.

Thanks for all the help thus far!

- Hugh

Code:

---

#include <stdio.h>
#include <stdlib.h>

#define MAX_STRING_SIZE 20
#define MAX_TBL_SIZE 30

/*
void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]);
*/

int main() {
   
    FILE *ifp;
    char filename[MAX_STRING_SIZE];
    int input_item_id[MAX_TBL_SIZE], input_item_stock[MAX_TBL_SIZE], i;
    int stock_num;
    float input_unit_price[MAX_TBL_SIZE];
   
    do {
      printf("\nEnter the name of the input file:\n");
      scanf("%s", filename);
      ifp = fopen(filename, "r");
      printf("\n %s", filename);
      /* I use braces, only when I have multiple
      lines of code that require it. Not for one line.
      This is one line of code, to the compiler, since the line
      extends to the first semi-colon it finds:
      */
      if(ifp == NULL)
        printf("Sorry, the file does not exist.\n\n");
     
    } while(ifp == NULL);
   
    for(i=0;i<MAX_TBL_SIZE; i++) {
      fscanf(ifp, "%d%d", &input_item_id[i], &input_item_stock[i]);
      fscanf(ifp,"%f", &input_unit_price[i]);
      /* if the stock id # is zero, the item can't be valid */
      if(input_item_id[i] == 0)
        break;
    }
    stock_num = i;
    printf("\n            CURRENT STATUS            \n");
    printf("Id      Stock      Price      Sufficient\n");
    printf("\nWe have %d items in stock", stock_num);
    for (i = 0; i < stock_num; i++)
      printf("\n%d %d %.2f", input_item_id[i], input_item_stock[i], input_unit_price[i]);

    printf("\n\n");

/*
  printCurrentStatus(input_item_id, input_item_stock, input_unit_price);
*/       
    system("PAUSE");
    return(0);
}

/*
void printCurrentStatus(int input_item_id[MAX_TBL_SIZE], int input_item_stock[MAX_TBL_SIZE], float input_unit_price[MAX_TBL_SIZE]) {
  printf("\n            CURRENT STATUS            \n");
  printf("Id      Stock      Price      Sufficient\n");
  printf("\n");
}
*/
/*
Ok, I cleaned up my code and I left the code in my function blank since I'm not sure how to write the loop.

This is what the sample input file looks like:

23 20 10.00
30 15 5.50
47 25 7.00
93 6 30.0
52 10 6.00
86 16 4.00
66 25 8.50
0 0 0
1
2 47
2 13
3 86 7
4 47 5
3 23 15
3 66 5
5
6
1
7
8

edit: I used while loop to make sure that the user enters in a valid filename
*/

---

Sorry to take so long. Ran across a weirdo problem trying to fscanf in the float:
"Abnormal program termination.
scanf: floating point package not linked"

Now I've got got my old reliable TC in 3 locations of 2 computers, but they're all throwing the same error message.

Finally, I realized I had named your program with a .cpp extension instead of a .c, so I was using the C++ compiler/linker, and not the C one's. My VERY early version of Turbo C/C++ didn't have fp format specifier's that could be linked, yet for the C++ version!! :)

Jeez!

Reading the text file will stop when the zero's are encountered, here.

Thanks alot Adak!

I tried something like this earlier since I figured the function printCurrentStatus() was facilitating most of my problems, but I didn't think of creating a new variable to compare "i" to. I understand everything you did, and I just wanted to say thank you for working on this and breaking it down for me.

Still got a few more things to go with this program, but you guys have been a great help so far. Thanks!

- Hugh

I have a few more questions...

Code:

---

case 8:
         
        printf("Items to be reordered\n\n");
       
      /*  for(i = 0; i < stock_num; i++)
            fscanf(ifp, "&#37;d%", input_item_stock[i]);
            if(input_item_stock[i] < MIN_STOCK_LEVEL)
              printf("%d", input_item_id[i]);
      */
           
      case 9:
       
        printf("Lowest stock: %d items left with id %d.\n", input_item_stock[i], input_item_id[i]);
        printf("URGENT ORDER - This product needs to be reordered immediately.\n\n");
       
      case 10:
        printf("\n            CURRENT STATUS            \n");
        printf("Id      Stock      Price      Sufficient\n");
        for (i = 0; i < stock_num; i++)
          printf("%d      %d        %.2f\n", input_item_id[i], input_item_stock[i], input_unit_price[i]);
        printf("\n");
      case 11:
         
        printf("Total price of all the items: $%.2f\n\n");
       
      case 12:
        printf("Good Bye!\n\n");   
    }

---

This is the end portion of my switch statement. I'm trying to figure out how to print the id's of the items that need to be reordered, but my code is unstable and causes my program to crash.

I'm also trying to print out the stock level and id number of the item with the lowest stock.

Finally, I'm trying to figure out how to find the total price of all items.

I don't want someone to write the code for me, but I'm having trouble understanding how it is supposed to work and I need someone to help explain the logic that goes into it.

Thanks in advance!

edit: I added spaces to the cases that I'm focusing on..

- Hugh

Code:

---

case 8:
         
        printf("Items to be reordered\n\n");
        for (i = 0; i < stock_num; i++)
          if(input_item_stock[i] < MIN_STOCK_LEVEL)
            printf("        &#37;d\n", input_item_id[i]);
           
        printf("\n");
           
      case 9:

        printf("Lowest stock: %d items left with id %d.\n", min_stock, min_stock_id);
        printf("URGENT ORDER - This product needs to be reordered immediately.\n\n");
       
      case 10:
        printf("\n            CURRENT STATUS            \n");
        printf("Id      Stock      Price      Sufficient\n");
        for (i = 0; i < stock_num; i++)
          printf("%d      %d        %.2f\n", input_item_id[i], input_item_stock[i], input_unit_price[i]);
        printf("\n");
      case 11:
         
        printf("Total price of all the items: $%.2f\n\n");
       
      case 12:
        printf("Good Bye!\n\n");   
    }

---

I figured out the answer to my first requests on my own..

I just need to know how to print out "Yes" or "No" for the section titled "Sufficient" and how to calculate the total price of all the items.

- Hugh

Code:

---

case 11:
        for(i = 0; i < stock_num; i++)
          total_price += (input_item_stock[i]) * (input_unit_price[i]);
        printf("Total price of all the items: $&#37;.2f\n\n", total_price);

---

..1 more down, and 1 to go..