for(i=0, j=0; c[i]!='\t'; i++, j++) { 
/* this keeps looping until a tab character is reached */
books[num_books].title[j] = c[i];
}

/* add a null character to terminate string */
books[num_books].title[j] = '\0';

#include "stdafx.h"
#include "stdio.h"
#include "stdlib.h"

struct book
{
char title[80];
char autor[40];
char editor[20];
char ISBN[10];
char subject[20];
int release;
};
typedef struct book bookInfo;


int main()
{
char x[50];
FILE *file; //file opened
infoLivre *books; // array of struct of undefined length
int num_books = 0;
int i, j;

file = fopen("books.txt", "r"); 
if(file==NULL) {
printf("Error: can't open file.\n");
return 1; 
}
else {
while (!feof(file)){ 

if(num_books==0) {
books = calloc(1, sizeof(infoLivre));
}
else {
books = realloc(books, (num_books+1)*sizeof(bookInfo));
}

/* now try to store relevant info in our struct field.
can do it character at a time as sscanf won't work as
it falls apart with spaces between names */

for(i=0, j=0; c[i]!='\t'; i++, j++) { 
/* this keeps looping until a tab character is reached */
books[num_books].title[j] = c[i];
}

/* add a null character to terminate string */
books[num_books].title[j] = '\0';

for(i++, j=0; c[i]!='\t'; i++, j++) {
books[num_books].autor[j] = c[i];
}
books[num_books].autor = '\0';


for(i++, j=0; c[i]!='\0' && c[i]!='\n'; i++, j++) {
/* store the gender but ignore the last newline character */
books[num_books].editor[j] = c[i];
}

books[num_books].editor[j] = '\0';

num_books++; /* keep track of how many we stored */
}
fclose(file); /* close file */

/* print all the info */

for(i=0; i<num_books; i++) { 
printf("%s\t ", books[i].title);
printf("%s\t ", books[i].autor);
printf("%d\t\n", books[i].editor);
}

if(books!=NULL) {
free(books); /* free any allocated memory */
}

return 0;
}
}