#include <stdio.h>
#include <stdlib.h>
#include "exp4.h"
int compare (void* ptr1, void* ptr2);

int main (void) {
    // Degiskenler
    int i = 7 ;
    int j = 8 ;
    int lrg;

    lrg = (*(int*) larger (&i, &j, compare));
    printf ("Larger value is: %d\n", lrg);
    return 0;
}

/* ==================== compare ====================
 Pre ptr1 and ptr2 are pointers to integer values
 Post returns +1 if ptr1 >= ptr2
 returns -1 if ptr1 < ptr2
*/

int compare (void* ptr1, void* ptr2){
    if (*(int*)ptr1 >= *(int*)ptr2)
    return 1;
    else
    return -1;
}

typedef struct node {
    void* dataPtr;
    struct node* link;
} NODE;
/* =================== createNode ====================
Creates a node in dynamic memory and stores data
pointer in it.
 Pre itemPtr is pointer to data to be stored.
 Post node created and its address returned.
*/
NODE* createNode (void* itemPtr) {
    NODE* nodePtr;
    nodePtr = (NODE*) malloc (sizeof (NODE));
    nodePtr->dataPtr = itemPtr;
    nodePtr->link = NULL;
    return nodePtr;
}

void* larger (void* dataPtr1, void* dataPtr2, int (*ptrToCmpFun)(void*, void*)) {
    if ((*ptrToCmpFun) (dataPtr1, dataPtr2) > 0)
        return dataPtr1;
    else
        return dataPtr2;
} // larger

------------

#include <stdio.h>
#include <stdlib.h>
#include "exp5.h"

int compare (void* ptr1, void* ptr2);

int main (void) {
    // Degiskenler
    float f1 = 73.4;
    float f2 = 81.7;
    float lrg;
    
    lrg = (*(float*) larger (&f1, &f2, compare));
    printf ("Larger value is: %5.1f\n", lrg);
    return 0;
}

/* ==================== compare ====================
 Pre ptr1 and ptr2 are pointers to integer values
 Post returns +1 if ptr1 >= ptr2
 returns -1 if ptr1 < ptr2
*/

int compare (void* ptr1, void* ptr2) {
    if (*(float*)ptr1 >= *(float*)ptr2)
        return 1;
    else
        return -1;
}

typedef struct node {
    void* dataPtr;
    struct node* link;
} NODE;
/* =================== createNode ====================
Creates a node in dynamic memory and stores data
pointer in it.
 Pre itemPtr is pointer to data to be stored.
 Post node created and its address returned.
*/
NODE* createNode (void* itemPtr) {
    NODE* nodePtr;
    nodePtr = (NODE*) malloc (sizeof (NODE));
    nodePtr->dataPtr = itemPtr;
    nodePtr->link = NULL;
    return nodePtr;
}

// Pre data1, data2, comparisonFunction Post void pointer
void* larger (void* dataPtr1, void* dataPtr2, int (*ptrToCmpFun)(void*, void*)) {
    if ((*ptrToCmpFun) (dataPtr1, dataPtr2) > 0)
        return dataPtr1;
    else
        return dataPtr2;
}