Добавил к седьмому заданию сравнение разных сортировок, сделал 9е задание на массивы

Sorting/7Ex/tools.c

@@ -66,6 +66,33 @@ void testSortRandomArray(sort_op op) {
 	}
 }
 
+void compareSorts(sort_op first, sort_op second) {
+    int length;
+
+	printf("Enter length of array: ");
+	if (scanf("%d", &length) == 1) {
+		double * first_arr = (double *)malloc(length * sizeof(double));
+        double * second_arr = (double *)malloc(length * sizeof(double));
+        int first_timer, second_timer, difference;
+        
+        
+		generate(first_arr, length);
+		copy(first_arr, second_arr, length);
+        
+        first_timer = testSort(first_arr, length, first);
+        printf("\n");
+        second_timer = testSort(second_arr, length, second);
+        
+        difference = abs(first_timer - second_timer);
+        printf(first_timer < second_timer ? "first sort was faster on %lf sec.\n" : "second sort was faster on %lf sec.\n", (double)difference / CLOCKS_PER_SEC);
+        
+		free(first_arr);
+        free(second_arr);
+	} else {
+		printf("Length not entered!\n");
+	}
+}
+
 void generate(double * array, int length) {
 	srand(time(NULL));
 
@@ -74,7 +101,11 @@ void generate(double * array, int length) {
 	}
 }
 
-void testSort(double * array, int length, sort_op op) {
+void copy(double * from, double * to, int length) {
+    for (int i = 0; i < length; ++i) to[i] = from[i];
+}
+
+int testSort(double * array, int length, sort_op op) {
 	int timer;
 
 	printArray(array, length);
@@ -86,6 +117,8 @@ void testSort(double * array, int length, sort_op op) {
     printArray(array, length);
 	if (isSorted(array, length)) printf("The array was sorted for %lf sec.\n", (double)timer / CLOCKS_PER_SEC);
 	else printf("The array was not sorted!\n");
+    
+    return timer;
 }
 
 void printArray(double * array, int length) {
@@ -106,3 +139,16 @@ bool isSorted(double * array, int length) {
 bool more(double a, double b) {
 	return (a - b) > exp;
 }
+
+int compare(const void * ufirst, const void * usecond) {
+	double first = (double)ufirst;
+	double second = (double)usecond;
+
+	if ((first - second) > eps) {
+		return 1;
+	} else ((second - first) > eps) {
+		return -1;
+	} else {
+		return 0;
+	}
+}