Thread: File input problem

I wrote a simple program called "processor.c" like this:

Code:

#include <stdio.h>
#include "memory.h"
#include "processor.h"
#include "Instructions.h"

int main()
{
  char * fileName = "data.txt";
  int flag = loadFile( fileName );
  if(flag>0)
  execute();
  return 0;
}

int loadFile( char * fileName )
{
  FILE * fPointer;
  int line = 0;
  int data = 0;
  fPointer = fopen( fileName, "r" );
  if ( fPointer == NULL )
  {
    printf( "File could not be opened\n" );
    return -1;
  }
  else
  {
    while ( !feof( fPointer ) )
    {
      fscanf( fPointer, "%d", & data );
      memory[line] = data;
      ++line;
    }
    return 1;
  }
}

I have saved my "data.txt" under the same directry with "processor.c". there is no compile errors or run time errors. However, when I run it, the "fOpen" method, could never open the file, it always returns the null back to "fPointer". So the result always ends up with a printing statement:"File could not be opened". I just can't see why it is so??? Could anybody help me on this. Thank you very much for the help.