C struct creation error does not name a type

Question

I am just trying to set up a simple recursive struct without too much knowledge of C (have to learn somehow)

here is my make compile line

g++ -o cs533_hw3 main.c

here is my code

typedef struct Node Node;

struct Node
{
    int texture;
    float rotation;
    Node *children[2];
};

Node rootNode;
rootNode.rotation

Here is my error on the last line

error: 'rootNode' does not name a type

Answer 1

Code has to be in functions in C. You can declare variables at the global scope, but you can't put statements there.

Corrected example:

typedef struct Node Node;

struct Node
{
    int texture;
    float rotation;
    Node *children[2];
};

Node rootNode;

int main(void)
{
    rootNode.rotation = 12.0f;
    return 0;
}