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.

Use perror instead of printf for more details on why the file couldn't be opened.

Code:

---

perror("File could not be opened");

---

Most likely the file couldn't be found because it's in the wrong directory.

>while ( !feof( fPointer ) )
This is going to bite you eventually. feof was not designed to be used as a loop condition. A better approach would be to use the return value of your input function as the condition.

Code:

---

while ( fscanf( fPointer, "%d", & data ) == 1 )
{
  memory[line] = data;
  ++line;
}

---