Bus error: 10. No errors when compiling - c

Question

So basically when I compile my code with a GCC compiler I get no error or warnings, but when I input the first piece of data it says:
Bus error: 10.
I'm not sure what I'm doing wrong. I think The problem is coming from void anagramGrouping (the last function). I also included the rest of the code to help follow the logic.
#include <stdio.h>
#include <string.h>
#define Row 2
#define col 20
int wordCount = 0;
int groupCount = 0;
char wordList[Row][col];
char group[Row][col];
// this is where prototypes go
void sortword(char word[col]);
void anagramGrouping(char word[col], char copy[col]);
void resetGroup();
int main() {
int i; // used in for loop to 'get' the strings
char word[col];
resetGroup();
for (i = 0; i < Row; i++) {
scanf("%s", word);
sortword(word);
wordCount++;
}
}
void resetGroup() {
int i;
for (i = 0; i < Row; i++)
strcpy(group[i], " ");
}
void sortword(char word[col]) {
int i = 0;
char temp;
char copy[col]; // used to store a copy of the original word
strcpy(copy, word);
while (word[i] != '\0') {
int j = i + 1;
while (word[j] != '\0') {
if (word[j] < word[i]) {
temp = word[i];
word[i] = word[j];
word[j] = temp;
}
j++;
}
i++;
}
anagramGrouping(word,copy);
}
void anagramGrouping(char word[col], char copy[col]) {
int n;
if (wordCount == 0) {
strcpy(group[0], copy);
}
for (n = 0; n <= groupCount; n++) {
if (strcmp(group[n], word) == 0) {
strcpy(group[n], copy);
} else {
groupCount++;
strcpy(group[groupCount], copy);
}
}
}

Answer 1

For starters, change all
sortword (char word[col])
to
sortword (char *word)
and all
anagramGrouping (char word[col], char copy[col])
to
anagramGrouping (char *word, char *copy)
When you pass char copy[col], you are passing a character array, which when passed as a function parameter is converted to a pointer. (you will hear the phrase "decays to a pointer", which isn't entirely correct, but is used often to mean the same thing). This isn't the problem causing the bus error, but will make your code much more readable.
Next, your bus error is generally due to the misuse of a pointer value which when the value is taken, falls outside the allowable memory range for your program, usually in the system area causing the bus error. Looking over your code, it is hard to tell which of the many issues may be the exact cause. However, a likely culprit is:
for(n=0; n <= groupCount; n++)
{
if ( strcmp(group[n],word) ==0 )
{
strcpy(group[n],copy);
}
else
{
groupCount++;
strcpy(group[groupCount],copy);
}
}
Where running through a debugger, you will quickly find that groupCount grows well beyond 1 causing strcpy(group[groupCount],copy) to write beyond the end of the char group[Row][col];. Where the allowable row values are limited to 0-1 as you #define Row 2.
To limit the copies to the allowable range, change the loop criteria to:
for (n = 0; n < Row; n++) {
A further cleanup of your code could look as follows:
#include<stdio.h>
#include<string.h>
#define Row 2
#define col 20
int wordCount = 0;
int groupCount = 0;
char wordList[Row][col];
char group[Row][col];
void sortword (char *word);
void anagramGrouping (char *word, char *copy);
void resetGroup();
int main (void) {
int i;
char word[col] = "";
resetGroup();
for (i = 0; i < Row; i++)
{
scanf ("%s", word);
sortword (word);
wordCount++;
}
return 0; /* main is a function of type 'int' and returns a value */
}
void resetGroup()
{
int i;
for (i = 0; i < Row; i++)
*group[i] = 0;
}
void sortword (char *word)
{
int i = 0;
char temp;
char copy[col] = "";
strcpy (copy, word);
while (word[i]) {
int j = i + 1;
while (word[j]) {
if(word[j] < word[i]) {
temp = word[i];
word[i] = word[j];
word[j] = temp;
}
j++;
}
i++;
}
anagramGrouping (word,copy);
}
void anagramGrouping (char *word, char *copy)
{
int n;
if (!wordCount)
strcpy (group[0],copy);
for (n = 0; n < Row; n++) {
if (strcmp (group[n], word) == 0)
strcpy(group[n],copy);
else {
groupCount++;
strcpy (group [groupCount],copy);
}
}
}
Let me know if you have any questions.