Question

I bumped into this error when I was trying to access a field in my defined struct:

struct linkNode{
    struct linkNode *next;
    char *value;
};

In the header file I defined a type called linkNode_t:

typedef struct linkNode linkNode_t;

When I tried to use this struct in the main of another file, everything else was fine except when I tried to do

linkNode_t* currentpath = /*a pointer to a struct of type linkNode_t*/
int something = strlen(currentpath->value);/****ERROR*****/

Compiler gave me the incomplete type error. Am I declaring the struct properly?

Answer 1

Struct has to be declared in header, before you do typedef. You can combine both:

typedef struct linkNode {
    struct linkNode *next;
    char *value;
} linkNode_t;