I won't even say how long I have been working on pset5, its embarrassing. But I have now at least got code written which I am sure is going to have a lot of mistakes. Problem is I can't even run GDB on the speller file to debug. I keep getting the following error message
(gdb) run ~cs50/pset5/texts/austinpowers.txt
Starting program: /home/ubuntu/workspace/pset5/speller >~cs50/pset5/texts/austinpowers.txt
Program received signal SIGSEGV, Segmentation fault.
0x000000000040142f in load (dictionary=0x401622 "dictionaries/large") at >dictionary.c:115
115 hashtable[hashy(new_node->word)] = new_node;
(gdb)
This is my load function that contains the offending line (115). Can anyone give some guidance as to what the error might be so I can at least get to a point where I can run GDB. Many Thanks.
bool load(const char* dictionary)
{
//initialise hashtable to NULL
for (int i = 0; i < 27; i++)
{
hashtable[i] = NULL;
}
// open dictionary file and read it
FILE* dic = fopen(dictionary, "r");
//if empty return false
if (dic == NULL)
{
printf("Failed to load dictionary.\n");
return false;
}
else
{
//continue until end of file reached
while(!feof(dic))
{
//build a new node
node* new_node = malloc(sizeof(node));
//read in the words from the dictionary
fscanf(dic, "%s", new_node -> word);
count++;
//put word through hash function to get index for the array
index = hashy(new_node-> word);
//if first word at index, put it in and point to Null
if (hashtable[hashy(new_node-> word)] == NULL)
{
hashtable[hashy(new_node->word)] = new_node;
new_node->next = NULL;
}
//if there is already a word at the index, add the new word
else
{
new_node->next = hashtable[hashy(new_node->word)];
hashtable[hashy(new_node->word)] = new_node;
}
}
