c - Passing BST to struct array -

i' write function pass words , values bst struct array. in tree have words(node->word) , value(node->val).
in main declare array of pair struct.

here code:

void inorder(tree *node,pair *array[], int index) {     if(node == null){  // recursion anchor: when node null empty leaf reached (doesn't matter if left or right, end method call        return;     }     inorder(node->left, array, index);   // first every left child tree     array[index]->val= node->val;   // write data in array     array[index]->word = malloc(sizeof(char)*(strlen(node->word)+1));     strcpy(array[index]->word,node->word);     index++;     inorder(node->right, array, index);  // same right child }  int main(int argc, char *argv[]) {      tree *mytree = null;     pair arr[5000];     int index=0;     ...     inorder(mytree,&arr,index);     printf("%d",arr[0].val);     zero(mytree);     return 0; } 

debugger says:

access violation writting location 0x0000001.

something weird pointers here. inorder function header expects array of pair pointers, pass in pointer array of pairs (which chunk of random memory). i'm pretty sure that's pointer error comes from.

there many ways fix this, i'll put 1 best. reason why you're passing pointer pointer instead of pointer? try changing function header:

void inorder(tree *node, pair *array, int index) 

and access stuff this:

array[index].val= node->val;   // write data in array array[index].word = malloc(sizeof(char)*(strlen(node->word)+1)); strcpy(array[index].word,node->word); 

and call main this:

inorder(mytree,arr,index); 

i can't test it, unfortunately, think should work.

p.s. sorry edits/deletions. misread something.