C数据结构如何声明

Question

I am stuck on the on how to manipulate the data structure.

I have header file that declare like this

struct item{
 int    i;  
 char   str[88];
};

and I have a C file that I want to make 9 structure items (I declare as global variable and I already include the header file):

struct item a[9];

but when I want to put the data that I want into

foo()

    {
    ...
      // let's say I have data int in index and char[] in string
      // and I want it to put at item_index

      a[item_index].i = index;
      a[item_index].str = string;
    ...
    }

but when ever I tried to compile it seem that it always shows

error: expected an identifiler

Answer 1

a[item_index].str = string;

This line will not behave the way you expect it to. You would need to use strcpy() in order to copy strings:

strcpy(a[item_index].str, string)

Answer 2

Array Name is a non modifiable (read only) variable or better say constant.

In this statement:

a[item_index].str = string;

you try to modify an array str , it is not permissible.

Either you can assign value to each index one by one (that is what done by strcpy ),
Or declare a pointer *str instead of array and then assign it any address you want.