C語言 插入排序 Insert Sort

#include <stdio.h>

void exchange(int* array, int p1, int p2)
{
	if (p1 == p2)
		return;
	int temp = array[p1];
	array[p1] = array[p2];
	array[p2] = temp;
}

void insertSort(int* array, int len)
{
	int sorted = 0; //the 1st data we think was already sorted
	int cur;
	for (cur = 1; cur < len; cur++)//start from 2nd data
	{
		//loop with sorted range
		int sort;
		for (sort = 0; sort <= sorted; sort++)
		{
			if (array[cur] <= array[sort])
			{
				// let current data move forward one by one and stop at right postion
				int curPos = cur;
				while (curPos != sort)
				{
					exchange(array, curPos, curPos - 1);
					curPos--;
				}
				break;
			}
		}
		sorted++;
	}
}

//From Intruduction Of Alogrithim
void insertSort1(int* array, int len)
{
	for (int i = 1; i < len; i++)//loop start from 2nd data cause we think 1st is already sorted
	{
		int key = array[i];//current data we call it key
		int j = i - 1;//watch pre data of key
		while (j >= 0 && array[j] > key)
		{
			array[j+1] = array[j];//if pre data bigger, move to right
			j--;//if pre data stiill bigger than key, move to right
		}//end while for moving
		array[j + 1] = key;// when move over the postion `j+1` was empty insert the key
	}	
}

void main()
{
	intarray[10] = { 1, 8, 3, 6, 2, 4, 7, 5, 9, 0 };
	printf("before:");
	int i;
	for (i = 0; i <= sizeof(array) - 1; i++)
	{
		printf("%d ", array[i]);
	}
	printf("\n");
	insertSort(array, sizeof(array));
	printf("\n after:");
	for (i = 0; i <= sizeof(array) - 1; i++)
	{
		printf("%d ", array[i]);
	}
	return;
}