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C program to find Total Amount of purchased Items by Passing Structure as an Argument using User Define Functions

mahmoud2506
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2022-05-03
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 C program to find Total Amount of purchased Items by Passing Structure as an Argument using User Define Functions

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mahmoud2506
2022-05-03
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C program to find Total Amount of purchased Items by Passing Structure as an Argument using User Define Functions

/*  
C program to find Total Amount of purchased Items by Passing Structure
as an argument using User Define Functions.
*/

#include <stdio.h>

/*declaration of structure*/
struct Item {
    char itemName[30];
    int quantity;
    float price, totalAmount;
};

/*function declaration*/
float getTotalAmount(struct Item);

int main()
{
    /*structure variable declaratio*/
    struct Item IT;
    float tAmount; /*total amount*/

    printf("Enter Item Name (max 30 characters): ");
    scanf("%[^\n]s", IT.itemName);
    /*we can also use gets(IT.itemName) - To read complete text untill '\n'*/

    printf("Enter price: ");
    scanf("%f", &IT.price);

    printf("Enter quantity: ");
    scanf("%d", &IT.quantity);

    /*calling function by passing structure Item's variable "IT"*/
    tAmount = getTotalAmount(IT);

    printf("Item Name: %s\nPrice: %f\nQuantity: %d\n", IT.itemName, IT.price, IT.quantity);
    printf("\nTotal Price of all quanities: %f\n", tAmount);
    return 0;
}

/* function definition...
 * Function     :   getTotalAmount
 * Argument(s)  :   struct Item - Item Structure name
 * Return Type  :   float - Total amount
*/
float getTotalAmount(struct Item item)
{
    /* remember Item - Is structure and "item" is structure variable name
     * which is formal here*/

    item.totalAmount = item.price * (float)item.quantity;

    return (item.totalAmount);
}

Output:

    Enter Item Name (max 30 characters): Pen
    Enter price: 12.50
    Enter quantity: 11
    Item Name: Pen
    Price: 12.500000
    Quantity: 11

    Total Price of all quanities: 137.500000

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C Programs/ Examples of User Define Functions (UDF Examples)
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