floats always have radix point

src/main.rs

@@ -48,9 +48,16 @@ fn hex_float(h: f64) -> String {
       num_divides += 1;
       if num_divides == e {
          output.push('.');
+      } else {
+         println!["{num_divides}, {e}"];
       }
    }
 
+   if e == 0 {
+      output.push('.');
+      output.push('0');
+   }
+
    if neg {
       output.push('-');
    }