389 - CE

[Kire Sopov]

Why am I getting a compile error?

Code: Select all

#include <iostream>
#include <iomanip>
#include <string>
#include <algorithm>

void ConvertNum(std::string &str, int nFrom, int nTo)
{
   static const char szDigits[] = "0123456789ABCDEF";
   int nValue10(0), nProduct(1);

   // Convert from base nFrom to base 10:
   for (std::string::const_reverse_iterator it = str.rbegin(); it != str.rend(); ++it)
   {
      int nTmp = ((*it >= '0') && (*it <= '9'))  ?  int(*it - '0') : 10 + (*it - 'A');
      nValue10 += nTmp * nProduct;
      nProduct *= nFrom;
   }

   // Convert from base 10 to base nTo:
   str.clear();
   do
   {
      str.push_back(szDigits[nValue10 % nTo]);
      nValue10 /= nTo;
   }
   while ((nValue10 > 0) && (str.length() < 8));

   if (str.length() > 7)
      str = "ERROR";
   else
      std::reverse(str.begin(), str.end());
}

int main()
{
   std::string   strNum;
   int         a, b;

   while (NULL != (std::cin >> strNum >> a >> b))
   {
      ConvertNum(strNum, a, b);
      std::cout << std::setw(7) << strNum << std::endl;
   }
}


[lnr]

I ran your code and got accepted.

[Angeh]

use strcasecmp();