Convert int32 to binary

int32_to_binary.lua

function conv_to_bin(x)
  t={}
  if x>0 then
    while x>0 do
      table.insert(t,x%2) 
      x=math.floor(x/2);
    end
  end
  
  if #t<32 then
    for i=1,32-#t do
      table.insert(t,0)
    end
  end
 return t
end