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Simple C Program help!

  • 08-10-2007 07:07PM
    #1
    L'prof
    Registered Users, Registered Users 2 Posts: 12,053 ✭✭✭✭


    This is supposed to sum up numbers entered by the user but, for some reason it seems to only add every second number!!!
    # include <stdio.h>

int main(void){
    int sum = 0;
    int add = 0;

    while (scanf("%d", &add) == 1){
	scanf("%d", &add);
	sum = sum + add;
	printf("Sum = %d\n", sum);}

    printf("\nThe sum of those numbers is %d.\n", sum);
    return 0;
}


Comments

  • #2
    bbbbb
    Registered Users, Registered Users 2, Paid Member Posts: 735 ✭✭✭bbbbb


    looks like you're doing scanf twice, but only adding once. try it without the second scanf statement.


  • #3
    henbane
    Registered Users, Registered Users 2 Posts: 1,636 ✭✭✭henbane


    You're using scanf twice in each pass through loop.


  • #4
    L'prof
    Registered Users, Registered Users 2 Posts: 12,053 ✭✭✭✭L'prof


    Oh really? I thought the first one was just a test! Thanks!

    That works now, cheers!


  • #5
    Giblet
    Registered Users, Registered Users 2 Posts: 12,026 ✭✭✭✭Giblet


    jasonorr wrote:
    Oh really? I thought the first one was just a test! Thanks!

    That works now, cheers!

    Remember, anytime you call a function, you are running it AND testing its result.


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