C program reads from .txt file - error!

This is a real beginner question!

I have a simple C program that reads from a txt file. I wrote it in the NIOS II IDE. The txt file is in the same directory on my hard drive as the C file. It's a real simple program - basically it reads from the file one character at a time, and outputs the characters to the screen.

When I build the project, the txt file is added to the project list. However, when I run it on the hardware (a Stratix), it doesn't work.

So I suppose it's not actually transferring the txt file to the device. Do I manually have to transfer the .txt file to the FLASH memory? How do I do this in the IDE? How do I have to modify my C code to find the txt file in the Flash memory?

Thanks a megabyte!

Studi

ps: here is my C program, to be thorough:

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

# include <stdio.h>

int main (void)

{

FILE *input;

char c;

//open file for reading only

input = fopen("input.txt", "r");

//check input file for errors - probably file does not exist

if (input == NULL)

{

fprintf(stderr, "Error - can not open file\n");

return 1;

}

else

{

printf("File opened successfully. Contents:\n\n");

while(1)

{ /* keep looping... */

c = fgetc(input);

if(c!=EOF)

{

printf("%c", c);

/* print the file one character at a time */

}

else

{

break; /* ...break when EOF is reached */

}

}

printf("\n\nNow closing file...\n");

fclose(input);

}

return 0;

}

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

The output is:

Error - can not open file