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Please check my Structure problem (simple question!)

Hi, im having a brain killer problem with my structure, bellow is the code, all is fine untill i add another field to the structure, char name[20] is what i want to add, so that each record has the persons name. the error on compile i get is:

error C2440: '=' : cannot convert from 'char [5]' to 'char [20]'
Please can you also detail why it does not work and what you changed?
Note the this is not the compete code, just the important bits.

typedef struct student STUDENT;
#define ARR_SIZE 05

struct student
{
long sid;
int mark;
char grade;
char name[20];
};

fillArray(staff,ARR_SIZE);

void fillArray(student s[], int n)
{

       s[0].sid=      301111;
       s[0].mark=      50;
       s[0].grade= 'B';
       s[0].name= "John, WS";

       s[1].sid=      302222;
       s[1].mark=      90;
       s[1].grade= 'A';
       s[1].name= "John, WS";

       s[2].sid=      303333;
       s[2].mark=      35;
       s[2].grade= 'C';
       s[2].name= "John, WS";

       s[3].sid=      306985;
       s[3].mark=      70;
       s[3].grade= 'B';
       s[3].name= "John, WS";

       s[4].sid=      304578;
       s[4].mark=      18;
       s[4].grade= 'E';
       s[4].name= "John, WS";
}

Thanks all.

ASKER CERTIFIED SOLUTION

imladris

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Kent Olsen

Several other pretty critical items come popping out. Basically, this shouldn't compile at all.

>> typedef struct student STUDENT;

You are declaring a type STUDENT that is a 'struct student'. You don't use it here in your example.

>> #define ARR_SIZE 05

>> struct student
>> {
>> long sid;
>> int mark;
>> char grade;
>> char name[20];
>> };

>> fillArray(staff,ARR_SIZE);

>> void fillArray(student s[], int n)

'student' is not a known type. 'STUDENT' is, and 'struct student' is too.
'n' is not used.

>> {
>> s[0].sid= 301111;
>> s[0].mark= 50;
>> s[0].grade= 'B';
>> s[0].name= "John, WS";

>> /* Deleted for brevity */
>> }

As imladris said, C won't set "John, WS" into 's[0].name' with the code that you've got. You need to call strcpy() to COPY the string into the struct.

Kent