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Comments on How can I delete a book from the collection by a particular title from my library file?

Post

How can I delete a book from the collection by a particular title from my library file?

+1
−3

I would like to delete a book from the collection by a particular title from my library if the user enters 2 as input for my switch statement. How can I do that with my current code?

#include<stdlib.h>
#define MAX 49
//void addBook(struct library* thislib){
//}
struct book{
     char *title;
     char *author;
     char *subject; //subject[]
};

struct library {
    struct book collection;
    int num_books;
    struct library *next; //store address of next node
};

struct book collection; //supposed to be aBook
struct book *aPtr;
struct library aCollection;
struct library *aaPtr;

int main (void){
    
   FILE *cfPtr; //pointer points to the newly created file

   char strtitle[MAX]; 
   char strauthor[MAX];
   char strsubject[MAX];
   int operation;

   
    if ((cfPtr = fopen("library.dat","w")) == NULL){
        printf("File could not be opened...\n");
    }
   else {

       while (!feof()){
        operate();
        printf("Enter an operation: ");
        scanf("%d", &operation);

          /*case 1: coding of the switch statement*/

            case 2: //here
            if(!isEmpty(aPtr)){ //if list is not empty
                aaPtr = NULL;
                print("%s", "Enter title of the book to delete:\n");
                scanf("%s", &strtitle);

                aCollection.collection = strtitle;
                delete(strtitle);
                printf("The book %s has been removed from the library.", aBook.title);
                fprintf(cfPtr, "The book %s has been removed from the library.", aBook.title);
                }
                else{
                    printf("Item not found!");
                }
                else{
                    puts("List is empty.\n");
                }
            }
            break;

/*unfinished coding, I'm still working on this code*/
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2 comment threads

What Canina said, but just a few more additional tips... (2 comments)
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Canina‭ wrote over 2 years ago

As it stands, this question is rather broad. We're not here to write your code (do your homework) for you. However, if you can name one SPECIFIC issue that you are having difficulties with, that's a different matter. Can you edit your question to narrow it down to something specific, rather than a broad "please write my code for me" type of question?