C struct problem -

i trying learn structs in c, not understand why cannot assign title example:

#include <stdio.h>  struct book_information {  char title[100];  int year;  int page_count; }my_library;   main() {   my_library.title = "book title"; // problem here, why?  my_library.year = 2005;  my_library.page_count = 944;   printf("\ntitle: %s\nyear: %d\npage count: %d\n", my_library.title, my_library.year, my_library.page_count);  return 0; } 

error message:

books.c: in function ‘main’: books.c:13: error: incompatible types when assigning type ‘char[100]’ type ‘char *’ 

lhs array, rhs pointer. need use strcpy put pointed-to bytes array.

strcpy(my_library.title, "book title"); 

take care not copy source data > 99 bytes long here need space string-terminating null ('\0') character.

the compiler trying tell wrong in detail:

error: incompatible types when assigning type ‘char[100]’ type ‘char *’

look @ original code again , see if makes more sense now.