Thread: Input for Struct?

When I compile, it gives me this error:

Code:

a8-2.c: In function `main':
a8-2.c:26: warning: implicit declaration of function `strdup'
a8-2.c:26: warning: assignment makes pointer from integer without a cast

Any clues? I've never used "strdup" before, do I need another header at the top like "#include ___" to make it work?

I actually fixed the input so it reads it like this:

Code:

 for (i = 0; i < k; i++) {

                fflush(stdin);
                printf("Please enter name: ");
                fgets(buffer, sizeof(buffer), stdin);
                members[i].name = malloc (sizeof buffer);
                strcpy(members[i].name,buffer);

                printf("Please enter ID:   ");
                scanf("%d", &members[i].id);
                members[i].index = i;
        }

Which seems to work as far as inputting goes. The bubblesort works now for the numbers, but it does something weird to the names. I will show you my input and output:

INPUT:

Code:

Please enter name: a
Please enter ID:   9
Please enter name: b
Please enter ID:   3
Please enter name: c
Please enter ID:   5
Please enter name: d
Please enter ID:   7
Please enter name: e
Please enter ID:   1
Please enter name: f
Please enter ID:   100
Please enter name: g
Please enter ID:   101
Please enter name: h
Please enter ID:   99
Please enter name: i
Please enter ID:   1000
Please enter name: j
Please enter ID:   999

So the Output SHOULD Be:

Code:

1, f

3, c

5, d

7, e

9, b

99, h

100, f

101, g

999, j

1000, i

But instead it is:

Code:

1, b

3, a

5, b

7, c

9, d

99, g

100, f

101, g

999, j

1000, i

It seems like the last few worked, but the first ones didn't. Very weird...any ideas?

This doesn't make any sense why it's doing this, but my input/output is as follows:

Code:

Please enter ID:   10
Please enter name: a
Please enter ID:   9
Please enter name: b
Please enter ID:   8
Please enter name: c
Please enter ID:   7
Please enter name: d
Please enter ID:   6
Please enter name: e
Please enter ID:   5
Please enter name: f
Please enter ID:   4
Please enter name: g
Please enter ID:   100
Please enter name: h
Please enter ID:   1000
Please enter name: i
Please enter ID:   999
Please enter name: j
4, b

5, a

6, b

7, c

8, d

9, e

10, f

100, h

999, j

1000, i

Why on earth would it work for the last 3 and not work for the others? Doesn't make sense to me...I've read the bubbelsort code and can't make sense of it.

Confused, very very confused,
Stewade

Seems to be having the same problem. I think the problem might be in bubblesort, but I can't seem to figure it out, the code looks correct to me

Code:

Please enter name: stewart
Please enter ID:   100
Please enter name: johnny
Please enter ID:   55
Please enter name: liz
Please enter ID:   23
Please enter name: abby
Please enter ID:   10002
Please enter name: nancy
Please enter ID:   345
Please enter name: drew
Please enter ID:   456
Please enter name: mark
Please enter ID:   333
Please enter name: dennis
Please enter ID:   1234
Please enter name: joe
Please enter ID:   999
Please enter name: gill
Please enter ID:   123445
23, johnny

55, stewart

100, johnny

333, nancy

345, abby

456, nancy

999, dennis

1234, mark

10002, dennis

123445, gill

Here's my bubblesort code I'm using for reference to my previous post:

Code:

void bubbleSort(int numbers[], int array_size) {
        int i, j, temp;

        for (i = (array_size - 1); i >= 0; i--) {
                for (j = 1; j <= i; j++) {
                        if (numbers[j-1] > numbers[j]) {
                                temp = numbers[j-1];
                                numbers[j-1] = numbers[j];
                                numbers[j] = temp;

                                members[j-1].index = j;
                                members[j].index = j-1;
                        }
                }
        }
}

WAHOOOOOOOOOOOOO! Man alive, thank you so much. You are a lifesaver. I really really appreciate it!