Converting an integer to binary in C

Question

I\'m trying to convert an integer 10 into the binary number 1010.

This code attempts it, but I get a segfault on the strcat():

int int_to_bin(int k)
{
          


        

Answer 1

You could use this function to get array of bits from integer.

    int* num_to_bit(int a, int *len){
        int arrayLen=0,i=1;
        while (i0){
            bits[arrayLen--]=a&1;
            a>>=1;
        }
        return bits;
     }