I want to make a function that searches my library.txt and returns a prinf output on whether the book exists within the file

Question

void search(FILE *fptr){

FILE *fptr2;

fptr = fopen("library.txt","r");

if (fptr == NULL){

       printf("Error! opening file");

}

fptr2 = fopen("output.txt","a+");

if (fptr2 == NULL){

       printf("Error! opening file");

}

char s[80];

int i;

struct book b;

struct library l;

printf("Enter title of book.\n");

scanf("%s",&s);

fscanf(fptr,"%s %d",&b.title,&l.num_books);

if(fgets(s[80],l.num_books,*b.title)==1){

   printf("the book %s is currently available.\n",s);

}

if(fgets(s[80],l.num_books,b.title)!=1){

    printf("the book %s is currently not available.\n",s);

   }

fclose(fptr);

fclose(fptr2);

}

Answer 1

You should use some regex library, that would be much better for searching.

Answer 2

Stfu