Thread: Help on project

Hayy, I need help on the project for my EGR 115 Computer Engineering class. I was wondering if you could help. I would like to post project but I can't. You can find the project guidelines on http://egr115.kindy.net/ and it is program #5.

This is what I have so far:

Code:

#include "stdio.h"
#include "stdlib.h"

main(){
    
    1.
    
    file handle: file*imput;
    FILE*imput: printf("Enter Item Number");
    fflush(stdin);
    fscanf(file "%d", &x);
    FILE*imput, *ouput;
    FILE*return Quantity;
    
    2.
    
    file handle: File*imput;
    FILE*imput: printf("Enter Item Number");
    fflush(stdin);
    fscanf(file "%d" &x);
    FILE*return Price;
    
    3.
    
    file handle: File*imput;
    FILE*imput: printf("Enter Item Number");
    FILE*imput: printf("Enter Item Quantity");
    fflush(stdin);
    fscanf(file "%d", &x);
    FILE*imput,*output;
    FILE*return Tax Code;
    
    
    4.
    
    File handle: File*imput;
    FILE*imput: printf("Enter Item Number");
    fflush(stdin);
    fscanf(file "%d", &x);
    FILE*quantity;
    FILE*return Tax Due
    
    system ("pause");
}//end of main

Thanks for the help.

Can I get your instructors email address so I can email him or her the solution?

Dave, hasn't something like

Code:

main() {

}

been depreciated since 1989?

Ok, I got it now, but now I need help on the switch case function to compute the tax.

Code:

#include "stdio.h"
#include "stdlib.h
#define	FILENAME			"db.txt"
#define	RECEIPT_FILE	"receipt.txt"
#define	TAXRATE			0.065


int Lookup_Item_Quantity(FILE *db, int item);
double Lookup_Item_Price(FILE *db, int item);
char Lookup_Item_Taxability(FILE *db, int item);
double Compute_Tax(FILE *db, int item, int qty);
int Remove_Qty_From_Inventory(FILE *db, int item, int qty);
int Create_Receipt(FILE *db, int items[][2], int itemcnt);

main() {
int Q;
double price;
char tax;
    
    FILE*db;
    db=fopen("db.txt", "r+");
    Q=Lookup_Item_Quantity(db, 333333);
    printf("%i", Q);
    
    FILE*db;
    db=fopen("db.txt", "r+");
    Price=Lookup_Item_Price(db, 333333);
    printf("%lf", price);
    
    FILE*db;
    db=fopen("db.txt","r+");
    tax=Lookup_Item_Taxability(db, 333333);
    printf("%c", tax);
    
    FILE*db;
    db=fopen("db.txt", "r+");
    ComputeT=Compute_Tax(db, 33333);
    printf("%i", "%lf", Q,Item);
	
	
	
} // end of main()

int Remove_Qty_From_Inventory(FILE *db, int item, int qty){

	int		rval=1;
	FILE		*db2 = fopen("temp.txt", "w");


	// ...
	// YOUR CODE GOES HERE...
	// Copy everything over from the db.txt file
	//  over to the temp.txt file -- be sure to
	//  subtract qty from the proper item
	// ...
	
	

	// This code renames the temporary file	
	// to be the new database file
	fclose(db);
	fclose(db2);
	remove(FILENAME);
	rename("temp.txt", FILENAME);
	db = fopen(FILENAME, "r+");
	
	
	return rval;
	
} // end of Remove_Qty_From_Inventory()


int Lookup_Item_Quantity(FILE *db, int item){
    while (in !=item){
        fscanf(db, "%i", &in);
        fscanf(db,"%lf\n" &price);
        fscanf(db, "%c", &tax);
        fscanf(db, "%i", &Q);
    }//end of while
    return Q;
	
} // end of Lookup_Item_Quantity()


double Lookup_Item_Price(FILE *db, int item){
    while (in !=item){
        fscanf(db, "%i", &in);
        fscanf(db,"%lf\n" &price);
        fscanf(db, "%c", &tax);
        fscanf(db, "%i", &Q);
    }//end of while
    return price;
	
} // end of Lookup_Item_Price()


char Lookup_Item_Taxability(FILE *db, int item){
    while (in !=item){
        fscanf(db, "%i", &in);
        fscanf(db,"%lf\n" &price);
        fscanf(db, "%c", &tax);
        fscanf(db, "%i", &Q);
    }//end of while
    return tax;
	
} // end of Lookup_Item_Taxability()


double Compute_Tax(FILE *db, int item, int qty){
    switch(tax, Q){
        case 'O'
        case 'T'
        case 'N'
    }//end of switchcase
        
	
} // end of Compute_Tax()

int Create_Receipt(FILE *db, int items[][2], int itemcnt){
	
} // end of Create_Receipt()

Thanks.