Thread: a couple of malloc problems

hi,

i have 2 problems with using the malloc function:

1.

Code:

int listValues[count] = malloc(count*sizeof(int));

the error i get: "variable-sized object may not be initialized"

2.

Code:

Node node3 = malloc(sizeof(*Node));

the error i get: "expected expression before 'Node'"

how i defined Node:

Code:

typedef struct node_t* Node;
struct node_t {
	int data;
	Node next;
};

can someone help me solve these errors?

1. A variable-length-array (a C99 (mis)feature) does not require a malloc (or associated free). They are automatically allocated and freed at runtime.

2. The error is referring to the second occurrence of Node in the statement where you are attempting to dereference a typedef. That doesn't work. You can fix it in two ways. Either change your typedef so that Node is not a pointer to node_t (we usually recommend that you not hide the fact that something is a pointer behind a typedef), or use the variable name in the sizeof, like sizeof(*node3).

thanks, had no idea about this C99 feature! =)