Create Generic linked list

Data Structure & Algorithm/Generic linked list

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+// C program for generic linked list 
+#include<stdio.h> 
+#include<stdlib.h> 
+
+/* A linked list node */
+struct Node 
+{ 
+	// Any data type can be stored in this node 
+	void *data; 
+
+	struct Node *next; 
+}; 
+
+/* Function to add a node at the beginning of Linked List. 
+This function expects a pointer to the data to be added 
+and size of the data type */
+void push(struct Node** head_ref, void *new_data, size_t data_size) 
+{ 
+	// Allocate memory for node 
+	struct Node* new_node = (struct Node*)malloc(sizeof(struct Node)); 
+
+	new_node->data = malloc(data_size); 
+	new_node->next = (*head_ref); 
+
+	// Copy contents of new_data to newly allocated memory. 
+	// Assumption: char takes 1 byte. 
+	int i; 
+	for (i=0; i<data_size; i++) 
+		*(char *)(new_node->data + i) = *(char *)(new_data + i); 
+
+	// Change head pointer as new node is added at the beginning 
+	(*head_ref) = new_node; 
+} 
+
+/* Function to print nodes in a given linked list. fpitr is used 
+to access the function to be used for printing current node data. 
+Note that different data types need different specifier in printf() */
+void printList(struct Node *node, void (*fptr)(void *)) 
+{ 
+	while (node != NULL) 
+	{ 
+		(*fptr)(node->data); 
+		node = node->next; 
+	} 
+} 
+
+// Function to print an integer 
+void printInt(void *n) 
+{ 
+printf(" %d", *(int *)n); 
+} 
+
+// Function to print a float 
+void printFloat(void *f) 
+{ 
+printf(" %f", *(float *)f); 
+} 
+
+/* Driver program to test above function */
+int main() 
+{ 
+	struct Node *start = NULL; 
+
+	// Create and print an int linked list 
+	unsigned int_size = sizeof(int); 
+	int arr[] = {10, 20, 30, 40, 50}, i; 
+	for (i=4; i>=0; i--) 
+	push(&start, &arr[i], int_size); 
+	printf("Created integer linked list is \n"); 
+	printList(start, printInt); 
+
+	// Create and print a float linked list 
+	unsigned float_size = sizeof(float); 
+	start = NULL; 
+	float arr2[] = {10.1, 20.2, 30.3, 40.4, 50.5}; 
+	for (i=4; i>=0; i--) 
+	push(&start, &arr2[i], float_size); 
+	printf("\n\nCreated float linked list is \n"); 
+	printList(start, printFloat); 
+
+	return 0; 
+}