simple array question

Hi, i am trying am dealing with numbers in two's complement. If I pass a negative number to the function, it turns it into positive and works out its binary equivalent. The bit I am stuck on is writing a loop that will do the following: take the least significant bit from array1 (i.e. its last element) and copy it into array2; so it keeps on copying until it encounters first 1, and from then on all 1's are copied as 0's and vice versa, so, for example -25:
array1 -> array2

Code:

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11001 -> 00111

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this is the code that i have, the only thing that doesn't work is the loop if flag == 1, can anyone help:

Code:

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

void binary_converter (int number,int binary[32], int n)
{
    int *data;
    int temp[32];
    data = (int*) calloc (n, sizeof (int));
    int i, k = 0, remainder, flag = 0;
   
    if (number < 0){
            number = number * -1;
            flag = 1;
    }
   
    for (i = 0; i < n; i++){
        remainder = number % 2;
        number = number / 2;
        data[i] = remainder;
    }
   
    while (i >= 0){
            binary[k++] = data[--i];
    }
   
    if (flag == 1){
            while (k >= 0){
                    if (binary[k] != 1){
                            temp[k] = binary[k]; k--;
                    }else{
                            temp[k] = binary[k]; k--;
                            if (binary[k] == 1){
                                    binary[k] = 0;
                                    temp[k] = binary[k]; k--;
                            }else {
                                    binary[k] = 1;
                                    temp[k] = binary[k]; k--;
                            }
                    }
            }
    }
    printf ("%d\n", k);
    for (i = 0; i < 5; i++){
            printf ("%d ", temp[i]);
    }
    printf ("\n");
   
}
 

int main (void)
{
        int binary[32] = {0};
        int i;
        binary_converter (-3 binary, 5);
        for (i = 0; i < 5; i++){
                printf ("%d ", binary[i]);
        }
        printf ("\n");
        return 0;
}

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is there something wrong with this bit of code?

Code:

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        binary_converter (-3 binary, 5);

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does this compile? have you used the debugger to insure you don't get past the "flag == 1" ?