File Stream I/O

HI,

Ive got a txt file with 120 lines in it, basically all i want to do is read through each line in it (looping around) and once in that line position, check to see if it contains an "R", if it does then i want to do something!

Ive had a go at doing this, as you can see from the code below. But got an error, also shown below! Please try and help in any way you can!

Code:

---

//Automatic Reset
        int CountDown[120];
        int A;
        char Buf[1];
        long Dist;
        int NumRead;
        char Blank[2] = " ";
       


        while (TRUE)
        {
                Sleep(100);


                for ( A = 1; (A >= 1) && (A <= 120); A++)
                {
                       
                        Dist=(6 + ((A - 1) * 9));

                        pnHandle = fopen(gtRESET_FILE, "r+");

                        pnSize = fseek(pnHandle, Dist, SEEK_SET);

                        NumRead = fread(Buf, 1, 1, pnHandle);
                       

                        if (Buf == "R")
                        {

                                CountDown[A] = 300;
                                //Do Block Here, Somehow??!
                                iPutEvent(A, GCEV_BLOCKED);
                                fwrite(Blank, 1, 1, pnHandle);

                        }


                        CountDown[A]--;


                        if (CountDown[A] = 0)
                        {

                                //Do UnBlock Here, Somehow??!
                                iPutEvent(A, GCEV_UNBLOCKED);

                        }

                }

        }

---

Error
-------------
Compiling...
EventHandler.cpp
C:\SMS\sms_c_V4\EventHandler.cpp(1121) : warning C4101: 'itemp' : unreferenced local variable
C:\SMS\sms_c_V4\EventHandler.cpp(1637) : error C2440: '=' : cannot convert from 'int' to 'struct _iobuf *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

EventHandler.obj - 1 error(s), 1 warning(s)

----------------

Thanks for any help whatsoever,




P :(

if (CountDown[A] = 0)

Didn't you want this to be:

if (CountDown[A] == 0)

Ok made that little change. Thanks

Ive also added more comments to code to try and help you lot help me! :p

Code:

---

//Automatic Reset
       
        //Array to countdown the 120 lines
        int CountDown[120];
       
        int A;
       
        //Array to store read in Char
        char Buf[1];

       
        long Dist;
        int NumRead;

        //Char array containing the blank space
        char Blank[2] = " ";
       


        while (TRUE)
        {

                Sleep(100);


                for ( A = 1; (A >= 1) && (A <= 120); A++)
                {
                       
                        //Number of bytes from the start of file to begin reading
                        Dist = (6 + ((A - 1) * 9));

                        //Open the file with read & write access
                        pnHandle = fopen(gtRESET_FILE, "r+");

                        //ERROR POINTS HERE!!!!!
                        //Move file pointer to correct position
                        pnSize = fseek(pnHandle, Dist, SEEK_SET);

                        //Read one byte from position and store in Buf
                        NumRead = fread(Buf, 1, 1, pnHandle);
                       

                        //Check to see if that line needs reseting
                        if (Buf == "R")
                        {

                                //Start countdown
                                CountDown[A] = 300;

                                //Block line
                                iPutEvent(A, GCEV_BLOCKED);

                                //Remove the "R" from the ResetFile.txt file
                                fwrite(Blank, 1, 1, pnHandle);

                        }

                        //Decrement the value at current position in the array
                        CountDown[A]--;


                        //If the value at the current position in the array is zero unblock line
                        if (CountDown[A] == 0)
                        {

                                //UnBlock line
                                iPutEvent(A, GCEV_UNBLOCKED);

                        }

                }

        }

---

ERROR
--------------------Configuration: sms_c - Win32 Debug--------------------
Compiling...
EventHandler.cpp
C:\SMS\sms_c_V4\EventHandler.cpp(1121) : warning C4101: 'itemp' : unreferenced local variable
C:\SMS\sms_c_V4\EventHandler.cpp(1650) : error C2440: '=' : cannot convert from 'int' to 'struct _iobuf *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

EventHandler.obj - 1 error(s), 1 warning(s)



Any more help anyone? :(

Thanks :)