Putting numbers separated by a space into an array

Question

I want to have a user enter numbers separated by a space and then store each value as an element of an array. Currently I have:

while ((c = getchar()) != \'\         


        

Answer 1

Small change to your code: only increment i when you read the space:

while ((c = getchar()) != '\n')
{
    if (c != ' ')
        arr[i] = arr[i] * 10 + c - '0'; 
    else
        i++;
}

Of course, it's better to use scanf:

while (scanf("%d", &a[i++]) == 1);

providing that you have enough space in the array. Also, be careful that the while above ends with ;, everything is done inside the loop condition.

As a matter of fact, every return value should be checked.