i have a seg fault

[ck1]

when i try to open the file i get a seg fault always. any help is appreciated.

void open_batch()
{
   char f[100];
   char c;
   int a = 0, b = 0;
   int eof = 0;
   int d, e, g, h, i, j, k;
   printf("Please enter the file you wish to run: ");
   scanf("%s", f);
   if((fopen(f,"rt") == NULL))
   {
      printf("No such file");
   }
   else
   {
      printf("File exists");
   }

   while(eof == 0)
   {
      c = fgetc(file);
      ...
      ...

[itsme86]

Where are you actually setting eof to something other than 0? Were you trying to use the standard EOF?

[Salem]

char c;
int a = 0, b = 0;
int eof = 0;
int d, e, g, h, i, j, k;
Try thinking up better names for your variables, and remove all the ones you don't need.
Apart from some obvious exceptions (eg. x,y for coordinates, i,j for loops, and perhaps c for chars), you should have meaningful names for things.
So for example char f[100]; would be char filename[100];

> if((fopen(f,"rt") == NULL))
Simplify!
You're ignoring the return result.
FILE *file = fopen( f, "rt" );
if ( file == NULL )

> c = fgetc(file);
1. You didn't declare file anywhere
2. c should be declared as int c; not char c;