taking string and integer in structure variable

Question

#include <stdio.h>
struct book
{
  char name[1000];
  int price;
};

int main()

{

    struct book ct1[5];
    int i;

    for (i = 0; i < 5; i++)
   {
    printf("Please Enter %d Number Book Name: ",i+1);
    gets(ct1[i].name);
    printf("Price: ");
    scanf("%d", &ct1[i].price);
  }

for (i = 0; i < 5; i++)
{
    printf("%d Nuumber Book's name and price : \n",i+1);
    printf("%s = %d\n", ct1[i].name, ct1[i].price);
}


return 0;

}

I write this code to take book names and price and to print it.

like

input: Please Enter 1 Number Book Name: Sherlock

price:100

...................

output:

Number Book's name and price: Sherlock = 100

.................

................

but it taking input like this Please Enter 1 Number Book Name: sherlock holmes

price: 100

Please Enter 2 Number Book Name: price: ........

first time it is correct but from the second time something goes wrong. please help me.

What exactly "goes wrong"? And don't use gets but fgets instead! — cadaniluk
– cadaniluk, Commented Oct 21, 2015 at 13:45

ameyCU · Accepted Answer · 2015-10-21 13:57:00Z

1

First of all stop using gets, use fgets instead -

fgets(ct1[i].name,sizeof ct1[i].name,stdin );

And after your scanf you can do this -

while((c=getchar())!=EOF && c!='\n');

declare c as int before for loop .

This is to remove '\n' from stdin which remains after scanf in each iteration and causes fgets to return .

edited Oct 21, 2015 at 13:57

answered Oct 21, 2015 at 13:53

ameyCU

16.7k2 gold badges28 silver badges41 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Tawhidur Rahman Tanim Over a year ago

it works perfectly. can you please explain how is this while loop working?

ameyCU Over a year ago

@TawhidurRahmanTanim Value returned from getchar is assigned to c . If value returned and stored in c is EOF or '\n' loop exits and if not then loop extracted ,until EOF or '\n' is encountered . In this way if '\n' is present in stdin it is read from it .

Haritha Elango · Accepted Answer · 2015-10-21 15:53:28Z

0

After scanf include this line to remove the newline character remaining in stdin

fflush(stdin)

answered Oct 21, 2015 at 15:53

Haritha Elango

886 bronze badges

1 Comment

Haritha Elango Over a year ago

Never knew that. Thanks a lot @chux

Collectives™ on Stack Overflow

taking string and integer in structure variable

2 Answers 2

2 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related