I am still working on the lovely trie project, now I am working on file input that will be passed into the trie. I receive the following errors when I compile this code.
$ make
gcc -Wall -g -c -o spellback.o spellback.c
spellback.c: In function ‘main’:
spellback.c:36: warning: implicit declaration of function ‘open’
spellback.c:36: warning: assignment makes pointer from integer without a cast
spellback.c:16: warning: unused variable ‘line’
gcc -Wall -g -o simplespell node.o spellback.o
I would like to be able to remove these warnings but the more pressing issue is this bus error:
$ ./simplespell -w filer.c
Opening default file
Closed default file
Opening selected file
Bus error
And of course here is the source code for this:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdbool.h>
#include "node.h"
#define MAXSIZE 2048
int main(int argc, char *argv[]){
int ck;
ck = argc;
//printf("%d\n", ck);
FILE *fp;
char line [MAXSIZE];
if(ck == 1){
printf("Opening default file\n");
fp = fopen(".WORDS", "r");
fclose(fp);
printf("Closed default file\n");
}
if(ck == 2){
printf("Invalid Input\n");
}
if(ck == 3){
printf("Opening default file\n");
fp = fopen(".WORDS", "r");
fclose(fp);
//point fp to next file
printf("Closed default file\n");
fp = open(argv[2], "r");
printf("Opening selected file\n");
fclose(fp);
printf("Closed selected file\n");
}
return 0;
}
Any idea what is causing this bus error? Also the c file does exist and I do have read permissions. As does .WORDS .
Marked 
, I need to be a bit more careful it seems. 
