scanf problems in visual studio 2010

[kills101]

Hi guys I started to practice C programming a few days ago, and I was asked by the tutorial video to write a program for a CD database. My problem is my code executes the next two printf statements if I enter words separated by a space, is it because of my scanf syntax? Any help is greatly appreciated.

#include <iostream>


int main()
{
    char title[40], artist[40], as[2]; 
    int price, tracks; 


    printf ("CD DATABASE\n");
    printf ("PLEASE ENTER THE TITLE OF THE CD\n");
    scanf ("%s", &title);
    printf ("PLEASE ENTER THE NAME OF THE ARTIST\n");
    scanf ("%s", &artist);
    printf ("PLEASE ENTER THE NUBER OF TRACKS\n");
    scanf ("%d", &tracks);
    printf ("PLEASE TYPE (a) FOR ALBUM AND (s) FOR SINGLE\n");
    scanf ("%s", &as); 
    printf ("PLEASE ENTER THE PRICE OF THE CD\n");
    scanf ("%d", &price);


    printf ("=====CD INFORMATION=====\n");
    printf ("CD TITLE: %s\n", title);
    printf ("ARTIST: %s\n", artist);
    printf ("NUMBER OF TRACKS: %d\n", tracks);
    
    if (strcmp(as,"a") == 0)
    {
        printf ("TYPE: ALBUM \n");
    }
    else
    {
        printf ("TYPE: SINGLE \n");
    }


    printf ("PRICE: %d\n", price);
    printf ("=====CD INFORMATION=====\n");
    fflush (stdin);
    getchar ();
}

[std10093]

scanf requires you to pass the address of the variable, thus

int var;
scanf("%d",&var);

char varStr[10];
scanf("%s",varStr);

[christop]

The %s specifier stops scanning a string at the first whitespace character. You can use the fgets function to read a whole line instead (but note that it stores the newline character at the end if it was present in the input and if there is enough space in the buffer). Alternatively you can use the %[ scanf specifier to read a string up to but not including the newline.

[hk_mp5kpdw]

#1 <iostream> is a C++ header. For the functions you've used in your program above you should include the <stdio.h> and <string.h> headers instead.

---

#2

fflush (stdin);

Read: FAQ > Explanations of... > Why fflush(stdin) is wrong

[kills101]

Thanks for the suggestion guys I finally found the solution to my problem, I tried to insert the fflush before every scanf and changed the header files to stdio instead of iostream.

#include <stdio.h>
#include <stdio.h>
#include <string.h>


int main()
{
    char title[40], artist[40], as[2]; 
    float price;
	int tracks; 


    printf ("CD DATABASE\n");
    printf ("PLEASE ENTER THE TITLE OF THE CD\n");
    scanf ("%[^\n]", &title);
    printf ("PLEASE ENTER THE NAME OF THE ARTIST\n");
	fflush(stdin);
    scanf ("%[^\n]", &artist);
    printf ("PLEASE ENTER THE NUBER OF TRACKS\n");
	fflush(stdin);
    scanf ("%d", &tracks);
    printf ("PLEASE TYPE (a) FOR ALBUM AND (s) FOR SINGLE\n");
	fflush(stdin);
    scanf ("%[^\n]", &as); 
    printf ("PLEASE ENTER THE PRICE OF THE CD\n");
	fflush(stdin);
    scanf ("%f", &price);


    printf ("=====CD INFORMATION=====\n");
    printf ("CD TITLE: %s\n", title);
    printf ("ARTIST: %s\n", artist);
    printf ("NUMBER OF TRACKS: %d\n", tracks);
    
    if (strcmp(as,"a") == 0)
    {
        printf ("TYPE: ALBUM \n");
    }
    else
    {
        printf ("TYPE: SINGLE \n");
    }


    printf ("PRICE: %.2f\n", price);
    printf ("=====CD INFORMATION=====\n");
    fflush (stdin);
    getchar ();
}

[Click_here]

Even after you read the link to "why fflush(stdin) is wrong"?...