Method set_double_value

sql/sql_acl.cc:1866–1871

    return set_value(key, v, vlen, false) == JSV_BAD_JSON;
  }
  bool set_double_value(const char *key, double val) const
  {
    char v[FLOATING_POINT_BUFFER+1];
    size_t vlen= my_fcvt(val, TIME_SECOND_PART_DIGITS, v, NULL);
    return set_value(key, v, vlen, false) == JSV_BAD_JSON;
  }
  bool set_bool_value(const char *key, bool val) const
  {
    return set_value(key, val ? "true" : "false", val ? 4 : 5, false) == JSV_BAD_JSON;