error: invalid types ‘unsigned int[unsigned int]’ for array subscript

Why am I getting invalid type on

Project1.cpp:139:32: error: invalid types ‘unsigned int[unsigned int]’ for array subscript
os << Mon[month(date)-1];

Code:

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void displayDate(const Date& date, ostream& os, DATE_STYLE ds)
{

 // if ds == MM_DD_YYYY)

  if (!wellFormed(date))
  {
    cout << "Date Error\n";
    exit(1);
  }
  else
    if (ds == MM_DD_YYYY)
    {
      if (numDigits(date) == 7)
        os << '0';
        os << month(date) << '/';
        if (nthDigit(date, 5) == 0)
          os << '0';
          os << day(date) << '/';
          unsigned y = year(date);
          unsigned len = 4 - numDigits(y);
          for (unsigned i = 0; i < len; ++i)
            os << '0';
            os << year(date) << endl;
    }
    else
      string Mon[12] = {"Jan ", "Feb ", "Mar ", "Apr ", "May ", "June ", "Jul ", "Aug ",
      "Sept ", "Oct ", "Nov ", "Dec " };
        unsigned Mon;
      os << Mon[month(date)-1];
        if (nthDigit(date, 5) == 0)
        os << '0';
        os << day(date) << ",";
        unsigned y = year(date);
        unsigned len = 4 - numDigits(y);
        for (unsigned i = 0; i < len; ++i)
        {
          os << '0';
          os << year(date) << endl;
        }
}

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Please, always add CODE tags around code snippets!
Read the Announcement: Before you post....

Will do! thanks for the help

Well, now look at the formatted code snippet...
this part:

Code:

---

else
    if (ds == MM_DD_YYYY)
    {
      if (numDigits(date) == 7)
        os << '0';
        os << month(date) << '/';
        if (nthDigit(date, 5) == 0)
          os << '0';
          os << day(date) << '/';
          unsigned y = year(date);
          unsigned len = 4 - numDigits(y);
          for (unsigned i = 0; i < len; ++i)
            os << '0';
            os << year(date) << endl;
    }
    else
      string Mon[12] = {"Jan ", "Feb ", "Mar ", "Apr ", "May ", "June ", "Jul ", "Aug ",
      "Sept ", "Oct ", "Nov ", "Dec " };
        unsigned Mon;

---

is the same as if you would write it as

Code:

---

else if (ds == MM_DD_YYYY)
{
      if (numDigits(date) == 7)
      { 
            os << '0';
      }
        os << month(date) << '/';
        if (nthDigit(date, 5) == 0)
        {
              os << '0';
      }
          os << day(date) << '/';
          unsigned y = year(date);
          unsigned len = 4 - numDigits(y);
          for (unsigned i = 0; i < len; ++i)
          {
            os << '0';
          }

            os << year(date) << endl;
    }
    else
    {
      string Mon[12] = {"Jan ", "Feb ", "Mar ", "Apr ", "May ", "June ", "Jul ", "Aug ",
      "Sept ", "Oct ", "Nov ", "Dec " };
    }
        unsigned Mon;
        ...

---

Is it the same as you have expected? :confused:

Quote:

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Originally Posted by thishas

Why am I getting invalid type on

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This seems bogus to me,

Code:

---

        unsigned Mon;
        os << Mon[month(date)-1];

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You are declaring Mon to be an ordinary unsigned int but then you use it as if it were an array.

The other Mon,

Code:

---

string Mon[12] = .......;

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is out of scope as VictorN suggests.