Ahoj,
muze mi nekdo poradit, proc mi nefunguje funkce sorts a pritom funguje insback? Jde mi o to, ze v sorts kompletne preskocim while loop, zatimco v insback to funguje spravne. Uz do toho koukam snad hodinu a nevidim chybu.
Diky.
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
// maximum length for a word
#define LENGTH 45
// default dictionary
#define DICTIONARY "words.txt"
typedef struct node
{
char word[LENGTH + 1];
struct node* next;
}
Word;
Word *head = NULL;
/****************************************/
/* PROTOTYPES */
/****************************************/
Word* sorts(char *node);
Word* insback(char *node);
void create(char *node);
void display();
void freememory();
/****************************************/
/* FUNCTIONS */
/****************************************/
void create(char *node)
{
Word *new_node = NULL;
new_node=(Word*)malloc(sizeof(Word));
if(head==NULL)
{
printf ("Creating list\n");
new_node->next=NULL;
head=new_node;
printf ("List created\n");
}
}
//Insert sorted after the word
Word* sorts(char *node)
{
Word *temp1;
temp1 = (Word*)malloc(sizeof(Word));
temp1 = head;
while(temp1->next!=NULL)
{
printf ("looping\n");
Word *curr;
curr = (Word*)malloc(sizeof(Word));
strncpy(curr->word, node, LENGTH);
if (strcmp(curr->word, temp1->word) >0 )
{
printf ("adding word\n");
curr->next = NULL;
temp1->next = curr;
}
temp1 = temp1->next;
}
return head;
}
//Insert from back
Word* insback(char *node)
{
Word *temp1;
temp1 = (Word*)malloc(sizeof(Word));
temp1 = head;
while(temp1->next!=NULL)
{
temp1 = temp1->next;
}
Word *curr;
curr = (Word*)malloc(sizeof(Word));
strncpy(curr->word, node, LENGTH);
curr->next = NULL;
temp1->next = curr;
return head;
}
// output the list
void display()
{
Word *Wordlist;
Wordlist = head;
while (Wordlist != NULL)
{
printf("%s->", Wordlist->word);
Wordlist = Wordlist->next;
}
printf("End of the list!\n");
}
// free allocated memory
void freememory()
{
Word *freenode = NULL;
Word *curr = NULL;
freenode = head;
while(freenode != NULL)
{
curr = freenode;
freenode = freenode->next;
free(freenode->word);
free(curr);
}
}
/****************************************/
/* M A I N */
/****************************************/
int main()
{
system("clear");
char data[LENGTH];
int count = 0;
FILE* file = fopen(DICTIONARY, "r");
printf ("Opening file\n");
// check successfull opening of the file
if(file == NULL) {
perror("Error opening file");
return -1;
}
create(NULL);
//read data (words) from file
while(fscanf (file, "%s", data) == 1)
{
count++;
insback(data);
}
//insfront("Start");
printf ("%d words read\n", count);
display();
freememory();
fclose(file);
return 0;
}
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