void drawRect(point topLeft, point botRight, unsigned char shade) {
point topRight; point botLeft;
if(topLeft.x > botRight.x){
intSwap(&topLeft.x, &botRight.x);
}if(topLeft.y > botRight.y){
intSwap(&topLeft.y, &botRight.y);
}
topRight = makePoint(botRight.x, topLeft.y);
botLeft = makePoint(topLeft.x, botRight.y);
drawLine(topLeft, topRight, shade);
drawLine(topRight, botRight, shade);
drawLine(botLeft, botRight, shade);
drawLine(topLeft, botLeft, shade);
}
void reverseIntArray(int a[], int n)
/* It reverse the order of the first n elements of a */
{
int i;
for(i=0;i<n/2;i++){
intSwap(&a[i],&a[n-i-1]);
}
}
int partition(int ** arrayptr, int leftIndex, int rightIndex, int pivotIndex)
{
/* arrange this slice of the array so that left_items > pivot > right_items */
int * array = *arrayptr;
int counter, swapIndex, pivotValue;
pivotValue = array[pivotIndex];
intSwap (&array[rightIndex], &array[pivotIndex]);
swapIndex = leftIndex;
for (counter = leftIndex; counter < rightIndex; counter++) {
if (array[counter] > pivotValue) {
intSwap(&array[counter], &array[swapIndex]);
swapIndex++;
}
}
intSwap (&array[rightIndex], &array[swapIndex]);
return swapIndex;
}
int main()
{
void (*foo)(int);
/* the ampersand is actually optional */
foo = &my_int_func;
foo(2);
int a = 2;
int b = 5;
printf("Before (a,b): (%d,%d)\n",a,b);
intSwap(&a,&b);
printf("After (a,b): (%d,%d)\n",a,b);
printf("sizeof(int): %lu\n", sizeof(int));
double doubleA = 3.14;
double doubleB = 9.81;
printf("Before (a,b): (%f,%f)\n",doubleA, doubleB);
genericSwap(&doubleA, &doubleB, sizeof(double));
printf("After (a,b): (%f,%f)\n",doubleA, doubleB);
printf("Before (a,b): (%d,%d)\n",a,b);
genericSwap(&a,&b, sizeof(int));
printf("After (a,b): (%d,%d)\n",a,b);
int srcArraySize = 5;
int srcArr[5] = {0, 1, 2, 3, 4};
int destArr[srcArraySize+1];
int value = 999;
for(int i=0; i<srcArraySize; i++) {
if(i!=srcArraySize-1) {
printf("%d, ", srcArr[i]);
}
else {
printf("%d\n", srcArr[i]);
}
}
intInsert(srcArr, destArr, &value, 2, 5);
for(int i=0; i<srcArraySize+1; i++) {
if(i!=srcArraySize) {
printf("%d, ", destArr[i]);
}
else {
printf("%d\n", destArr[i]);
}
}
return 0;
}