CODEWITHSUNDEEP
c
wizard of oz
wizard of oz

Reputation: 59

stack in C , expected expression before 'int'

im completely new in programming and i got a lot error :)

im trying to code my first stack like this and try to check empty :

 #define SIZE 10 
    struct stack {
        int myTop;
        int items[SIZE];
    };
    int empty(int *s);
int main() {
    struct stack s;
    s.items;
    s.myTop;
    int i;
    int x;
    for ( i = 0 ; i < SIZE ; i ++ ) {
        printf("enter you element");
        scanf("%d", &s.items[i]);
    }
    if (empty(int *s))
        printf("stack is empty");
    else
        printf("stack is not empty");


    getchar();
    return 0;
}
int empty(int *s) {
    if ( s -> myTop == -1) 
        return 1;
    else
        return 0;   
}
    enter code here

and i got this errors : in line 24 expected expression befor 'int' , what its mean for god sake ? and others plz help the new guy :)

Upvotes: 0

Views: 480

Answers (1)

Sadique
Sadique

Reputation: 22823

This line is the problem:

if (empty(*s))

Change it to:

if (empty(&s))

Also your method prototype is wrong, it should be:

int empty(struct stack *s)

You cannot pass a struct pointer to an int pointer.

Also you are not assigning anything here:

s.items; // = ?
s.myTop; // = ?

Not sure what you are trying but your fully compilable code (ignoring warnings) is here.

Upvotes: 3

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