Translation function from 10 to 2 in C?

Question

C++ / C#

Good day. Maybe someone in the snippets has the function of converting from 10th to 2nd number system in C, please share.
Thanks in advance.

Answer 1

int dec2bin(int num)
{
    int bin = 0, k = 1;

    while (num)
    {
        bin += (num % 2) * k;
        k *= 10;
        num /= 2;
    }

    return bin;
}