Printf all memers of structure.

[ismailov-e]

Hi everybody!!
How can I use only one printf to print all memers of structure. For example:

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Code C - [expand]
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#include <stdio.h>
#include <string.h>
 
typedef struct Books
{
   char  title[50];
   char  author[50];
   char  subject[100];
   int   book_id;
} Book;
 
int main( )
{
   Book book;
 
   strcpy( book.title, "C Programming");
   strcpy( book.author, "Nuha Ali"); 
   strcpy( book.subject, "C Programming Tutorial");
   book.book_id = 6495407;
 
   printf( "Book title : %s\n", book.title);
   printf( "Book author : %s\n", book.author);
   printf( "Book subject : %s\n", book.subject);
   printf( "Book book_id : %d\n", book.book_id);
 
   return 0;
}

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[ismailov-e]

Hey. I found how to do this. Using Binary I\O Functio.
I have one question:
Can I write members in file separeted with new line?

 

[horace1]

is this what you require?

int main(void)
{
  Book book={"The Weald of Youth","Siegfried Sassoon","autobiography"};
  printf("%s\n%s\n%s\n", book.title, book.author, book.subject);
  }

gives

The Weald of Youth
Siegfried Sassoon
autobiography

 

[ismailov-e]

is this what you require?

int main(void)
{
  Book book={"The Weald of Youth","Siegfried Sassoon","autobiography"};
  printf("%s\n%s\n%s\n", book.title, book.author, book.subject);
  }

gives

The Weald of Youth
Siegfried Sassoon
autobiography

Thank you for your reply.
But I tried avoid to write all members as you did. And after I aimed to write to file.
I succeed with "fwrite" function.

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Code C - [expand]
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fwrite(&book,sizeof(book),1,f);

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.
But it is write to file the value of members in disorder.

 

[horace1]

fwrite() writes a block of memory to a file, i.e. in binary, to be read later by a program using fread() or similar
if you require formatted output in human readable form use printf()
binary IO is used because it is more efficent (faster and the files are shorter) than formatted IO when one does not need the output to be human readable