compiling error!

Hi all..

i have this code here..

Code:

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#include <windows.h>
#include <iostream.h>
#include <tchar.h>
//convert the string to number
//udata is string
//udatalen is length of string
//base is numerical base eg. for decimal it is 10
// for hex it is 16
//largest base supported here is upto 36

int __fastcall StrToNum(const TCHAR *udata, int udatalen, int base)
{
        long index;
        const TCHAR numdigits[] = TEXT("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
        long digitValue = 0;
        long RetVal = 0;
        TCHAR digits[sizeof(numdigits)+1];
        TCHAR *dataVal;
        TCHAR data[512] ;
        //copy the data to our variable
        _tcscpy(data, udata);
        //convert it to upper case
        _tcsupr(data);
        ZeroMemory(digits, sizeof(digits));
        //copy the number of digits supported by base in digits
        _tcsncpy(digits, numdigits, base);
        for(index = 0; index < udatalen; index++)
        {
                //is the number there
                dataVal = _tcschr(digits, data[index] );
                if(dataVal != 0 )
                {
                        //if it is subtract where to start point
                        digitValue = long(dataVal - digits);
                        //increment Retval with digitvalue
                        RetVal = RetVal * base + digitValue;
                }
        }
        //return the result
        return RetVal;
}

TCHAR* __fastcall NumToStr(TCHAR *RetData, long number, int base)
{
        long index = 0;
        const TCHAR numdigits[] = TEXT("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
        long digitValue = 0;
        TCHAR digits[sizeof(numdigits) + 1];
        TCHAR RetVal[512];
        TCHAR CurVal = 0;       
        ZeroMemory(RetVal, sizeof(RetVal));
        // only base supported are from 2 to 36
        if(base < 2 || base > 36 ) return NULL;
        ZeroMemory(digits, sizeof(digits));
        _tcsncpy(digits, numdigits, base);
        while(number)
        {
                digitValue = number % base;
                number = number base;
                RetVal[index++] = digits[digitValue];
        }
        //since string we have got is in reversed format
        //eg 100 will be 001 so we have to reverse it
        //and put the value in our variable
        ZeroMemory(RetData, _tcslen(RetVal)+1);
        int i = 0;
        for(index = _tcslen(RetVal) - 1; index > -1; index--)
        {
                //start reversing
                RetData[i++] = RetVal[index];
        }
        //return the result
        return RetData;
}

//our main function
int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
        TCHAR Data[128];
        ZeroMemory(Data, sizeof(Data));
        //convert a number to string
        NumToStr(Data, 1123, 10);
        //now again convert string to number and see the result
        cout << StrToNum(Data, _tcslen(Data), 10) << endl;
        return 0;
}

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but when i compile it this error msg appear to me :
syntax error : missing ';' before identifier 'base'

i've cheaked the place where it said that the ";" is missing but it's not!

so pls if any1 can help me..

and thank you very much :)

something else is missing

number = number / base;

change following lines to be closer to C++ standard

Code:

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#include <iostream>

        std::cout << StrToNum(Data, _tcslen(Data), 10) << std::endl;

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It would help if you could indicate which use of base in your code (there are many) which is causing the problem.