diff --git a/sorting_algorithms/quicksort/quicksort.c b/sorting_algorithms/quicksort/quicksort.c
index 8746ee9..bf51b60 100644
--- a/sorting_algorithms/quicksort/quicksort.c
+++ b/sorting_algorithms/quicksort/quicksort.c
@@ -2,41 +2,24 @@
 /* Include guards + include statements. */
 #ifndef QUCIK_SORT_C
 #define QUICK_SORT_C
-#include <string.h>
 #include "quicksort.h"
 #endif /* QUICK_SORT_C */
 
 /* Function implementations. */
 
-/* This is the standard (<) comparison function. */
-int standard_compare_quick_sort(const void* first, const void* second) {
-	/* Sanity check. */
-	if (first == NULL && second != NULL)
-		return 1;
-	else if (first != NULL && second == NULL)
-		return 0;
-	else if (first == NULL && second == NULL)
-		return 0;
-	else
-		return *((int*)first) <= *((int*)second); /* THIS IS WRONG AND SHOULD BE FIXED! */
-}
-
-/* Note that if the comparison function is NULL, then the regular comparison operator is used <. */
+/* Note that if the comparison function is NULL, then the function will quit! */
 /* Note that the comparison function should return 1 if the second argument is larger than or
 * equal to the first, otherwise zero. */
 /* The array's length should be passed in the length argument. */
 /* The function returns a NULL pointer on error, caller must check! */
 void* quick_sort(void* array, int (*comparison_function)(const void*, const void*), const size_t length, const size_t size) {
 	/* Sanity check. */
-	if (array == NULL)
+	if (array == NULL || comparison_function == NULL)
 		return NULL;
 
 	/* Rely on the standard qsort library function. */
 	/* Sort according to ptr, and based on the employed comparison function. */
-	if (comparison_function != NULL)
-		qsort(array, length, size, standard_compare_quick_sort);
-	else
-		qsort(array, length, size, comparison_function);
+	qsort(array, length, size, comparison_function);
 
 	/* Return the result. */
 	return array;
diff --git a/sorting_algorithms/quicksort/quicksort.h b/sorting_algorithms/quicksort/quicksort.h
index 990505c..fcafacc 100644
--- a/sorting_algorithms/quicksort/quicksort.h
+++ b/sorting_algorithms/quicksort/quicksort.h
@@ -1,9 +1,7 @@
 /* This header defines the function for quick sort. */
 #ifndef QUICK_SORT_H
 #define QUICK_SORT_H
-#include <aio.h>
-/* This is the standard (<) comparison function. */
-int standard_compare_quick_sort(const void* first, const void* second);
+
 /* The quicksort function's definition. */
 void* quick_sort(void* array, int (*comparison_function)(const void*, const void*), const size_t length, const size_t size);
 #endif /* QUICK_SORT_H */