Fix rounding in Number.prototype.toFixed (#3747)

Fixes #3741. JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu
2020-05-18 18:39:00 +02:00
parent f0d443daec
commit 7274fa4dd4
2 changed files with 34 additions and 1 deletions
@@ -673,6 +673,7 @@ ecma_builtin_number_prototype_object_to_fixed (ecma_number_t this_num, /**< this
  if (!ecma_number_is_zero (this_num))
  {
    num_digits = ecma_number_to_binary_floating_point_number (this_num, digits, &exponent);
+    JERRY_ASSERT (exponent >= 0);
  }
  else
  {
@@ -692,7 +693,7 @@ ecma_builtin_number_prototype_object_to_fixed (ecma_number_t this_num, /**< this

  /* 8. */
  num_digits = ecma_builtin_number_prototype_helper_round (digits,
-                                                           num_digits + 1,
+                                                           num_digits + (lit_utf8_size_t) exponent,
                                                           exponent + frac_digits,
                                                           &exponent,
                                                           ecma_number_is_zero (this_num));