Why am I getting a Segmentation fault?

[carlymb]

I Have written this code for a programming assignment in a C/C++ class and I can not find were it is having problems
*************** ***

struct student
{
char last_name[20];
char frist_name[20];
float points;
char grade;
};
...
void sort(struct student list[], int n)
...
fp1=fopen(argv[1], "r");
...
while(check!=EOF)
{
n++;
check=fscanf(fp1, "%s %s %d",list[n].last_name,
list[n].frist_name, list[n].points);
}
compute_grade(list,n);
sort(list, n);
...
}

*************** *******
complete code attached.
I think the problems with how I pass the list but I am not sure the error when I put the the FILE with the following data
Smith John 90.00
Willis Josh 60.50
Apple Kate 75.33
Ford Mary 85.45

is a Segmentation fault
not very much help I know
any step in the right direction will be a great help.

[horace1]

you need to pass addresses to fscanf using the & address of operator

check=fscanf(fp1, "%s %s %d",&list[n].last_name,
    &list[n].frist_name, &list[n].points);

[Banfa]

No you need to pass the address of variables with types like int and float. Since a string is an array the array name already decays to a pointer. Also you use %d which indicates an integer but .points is a float.

Try

check=fscanf(fp1, "%s %s %f",list[n].last_name,
    list[n].frist_name, &list[n].points);

[carlymb]

how would I need to pass the array though to compute grade to actually make the change?