new project added

C/CAFETERIA_ORDER_PROGRAM/actor.h

@@ -6,12 +6,42 @@
 #include <stdlib.h>
 #include <time.h>
 #include <string.h>
+
+/**
+ * Function to print order details
+ * 
+ * */
+void printOrder(int i)
+{
+    printf("Invoice: %d\n", c[i].order.invoice);
+    printf("Customer Name: %s\tPhone Number: %ld\n", c[i].customer.name, c[i].customer.pno);
+    printf("Order: %s\n", c[i].order.item);
+    printf("Quantity: %d\t\t", c[i].order.quantity);
+    printf("Price: %.2f\n", c[i].order.price);
+    if (c[i].order.isPaid)
+    {
+        printf("Status: Paid");
+    }
+    else
+    {
+        printf("Status: Not Paid");
+    }
+}
+
+/**
+ * Clear output screen
+ * 
+ * */
 void clear()
 {
     if (system("clear") != 0)
         system("cls");
 }
 
+/**
+ * Clears input Buffer
+ * 
+ * */
 void flush()
 {
     char c;
@@ -20,6 +50,10 @@ void flush()
     }
 }
 
+/**
+ * Prints menu and returns user selection
+ * 
+ * */
 int menu()
 {
     clear();
@@ -28,17 +62,20 @@ int menu()
     printf("==================================\n\n");
     printf("1. Add new order");
     printf("\n2. Delete order");
-    printf("\n3. Edit order");
-    printf("\n4. Show all order");
-    printf("\n5. Search order");
-    printf("\n6. Quit");
+    printf("\n3. Show all order");
+    printf("\n4. Search order");
+    printf("\n5. Quit");
     printf("\n> ");
     int opt;
     scanf("%d", &opt);
     flush();
     return opt;
 }
 
+/**
+ * Prints banner and info of coder
+ * 
+ * */
 void info()
 {
     clear();
@@ -50,28 +87,33 @@ void info()
     clear();
 }
 
+/**
+ * Add new order
+ * 
+ * */
 void addNew()
 {
     ++top;
-    if (top > MAX_SIZE)
-    {
-        printf("Buffer Overflow");
-        exit(1);
-    }
     srand(time(NULL));
     printf("==================================\n");
     printf("==            ADD NEW           ==\n");
     printf("==================================\n\n");
+    if (top > MAX_SIZE)
+    {
+        printf("Buffer Overflow");
+        return;
+    }
     c[top].order.invoice = (rand() % 99999999 + 1);
     printf("enter name: ");
     fgets(c[top].customer.name, 30, stdin);
+    c[top].customer.name[strcspn(c[top].customer.name, "\r\n")] = 0;
     printf("enter phone number: ");
     scanf("%ld", &c[top].customer.pno);
     flush();
     printf("invoice: %d\n", c[top].order.invoice);
     printf("enter item name: ");
     fgets(c[top].order.item, 30, stdin);
-    strtok(c[top].order.item, '\n');
+    c[top].order.item[strcspn(c[top].order.item, "\r\n")] = 0;
     printf("price (per item): ");
     float p;
     scanf("%f", &p);
@@ -86,42 +128,97 @@ void addNew()
     flush();
 }
 
+/**
+ * Deleting existing order
+ * 
+ * */
 void deleteOld()
 {
+    printf("==================================\n");
+    printf("==         DELETE  ORDER         ==\n");
+    printf("==================================\n\n");
+    if (top == -1)
+    {
+        return;
+    }
+    int iv;
+    printf("enter invoice number: \n");
+    scanf("%d", &iv);
+    flush();
+    int found = 0;
+    for (int i = 0; i <= top; i++)
+    {
+        if (c[i].order.invoice == iv)
+        {
+            if (i == top)
+                found = 1;
+            else
+            {
+                for (int j = i + 1; j <= top; j++)
+                {
+                    c[j - 1] = c[j];
+                }
+            }
+            found = 1;
+        }
+    }
+    if (!found)
+    {
+        printf("Not Found");
+    }
+    else
+    {
+        printf("Deleted");
+        --top;
+    }
 }
 
+/**
+ * Searching order
+ * */
 void search()
 {
+    printf("==================================\n");
+    printf("==         SEARCH ORDER         ==\n");
+    printf("==================================\n\n");
+    if (top == -1)
+    {
+        return;
+    }
+    int iv;
+    printf("enter invoice number: \n");
+    scanf("%d", &iv);
+    flush();
+    int found = 0;
+    for (int i = 0; i <= top; i++)
+    {
+        if (c[i].order.invoice == iv)
+        {
+            printOrder(i);
+            found = 1;
+        }
+    }
+    if (!found)
+    {
+        printf("Not Found");
+    }
 }
 
-void modify()
-{
-}
-
+/**
+ * SHOWING all orders
+ * 
+ * 
+ * */
 void showall()
 {
     printf("==================================\n");
     printf("==      SHOWING ALL ORDERS      ==\n");
     printf("==================================\n\n");
-    printf("%s", c[0].order.item);
-    printf("%s", c[0].customer.name);
-    return;
     for (int i = 0; i < top + 1; i++)
     {
-        printf("Invoice: %d\n", c[i].order.invoice);
-        printf("Customer Name: %sPhone Number: %ld\n", c[i].customer.name, c[i].customer.pno);
-        printf("Order: %s", c[i].order.item);
-        printf("Quantity: %d\n", c[i].order.quantity);
-        printf("Price: %f\n", c[i].order.price);
-        if (c[i].order.isPaid)
-        {
-            printf("Status: Paid");
-        }
-        else
-        {
-            printf("Status: Not Paid");
-        }
+        printOrder(i);
         printf("\n------------------------------------------------------\n");
     }
 }
+
 #endif // ACTOR

C/CAFETERIA_ORDER_PROGRAM/cafeteria.h

@@ -3,12 +3,14 @@
 
 #include "config.h"
 
+// schema for customer
 struct Customer
 {
     char name[30];
     long pno;
 };
 
+// schema for order placed
 struct Order
 {
     char item[30];
@@ -18,10 +20,11 @@ struct Order
     int isPaid;
 };
 
+// schema for Cafeteria
 struct Cafeteria
 {
     struct Order order;
     struct Customer customer;
 } c[MAX_SIZE];
-int top = -1;
+int top = -1; // top
 #endif

C/CAFETERIA_ORDER_PROGRAM/main.c

@@ -17,18 +17,14 @@ int main()
             deleteOld(); // calling function to delete order
             break;
         case 3:
-            clear();  // clearing output screen
-            modify(); // calling function to modify an order
-            break;
-        case 4:
             clear();   // clearing output screen
             showall(); // calling function to show all order
             break;
-        case 5:
+        case 4:
             clear();  // clearing output screen
             search(); // calling function to search an order
             break;
-        case 6:
+        case 5:
             return 0; // exiting of option selected 6
         default:
             printf("Invalid Input");

C/CAFETERIA_ORDER_PROGRAM/readme.md

@@ -0,0 +1,30 @@
+# Cafeteria Management System
+This is C based program for demonstrating the use of `struct` in C
+
+
+# Requirements
++ gcc v5+ installed
+
+# How to Run
++ Change the `config.h` file
+```cpp
+// coder settings
+#define NAME "Gurkirat"
+#define INSTITUTION "MDU Rohtak"
+#define SUBMITTED_TO "Mr. Deepak"
+
+// program settings
+#define MAX_SIZE 100
+```
+
++ Building the program
+```
+$ gcc main.c -o program
+```
+
++ Running the program
+```
+$ program
+```
+
+**Note :** If you are on windows os then add `gcc.exe` to the enviroment path variable before compiling the program