Help with bitmap

[melissa9675]

I have a bit of code here..my question is that why is it divisible by 4?

while((scanline_bytes + padding_bytes) % 4 != 0)
        padding_bytes++; 
    cout << "Each scanline has " << padding_bytes << " padding bytes at the end" << endl;

[Dy7SLyTq]

its not... % takes the remainder of how much is left after 4 goes into it ie if scanlines % 4 == 0, then the if wouldnt execute because that means 4 went into it perfectly

[melissa9675]

Thank you!