PKU-程序设计实习-MySort函数

#include <iostream>
#include <string.h>
#include <stdio.h>
using namespace std;

void mysort(void* inputArray, const int nInput, const int dataSize, int cmpFunc(const void* elem1, const void* elem2))
{
char* input = (char*)inputArray;
for(int i = 0; i < nInput - 1; i++)
{
for(int j = i + 1; j < nInput; j++)
{
if(cmpFunc(input + j * dataSize, input +i * dataSize) < 0)
{
char* buf = new char[dataSize];
memcpy(buf, input + i * dataSize, dataSize);
memcpy(input + i * dataSize, input + j * dataSize, dataSize);
memcpy(input + j * dataSize, buf, dataSize);
delete buf;
}
}
}
}

int MyCompare(const void* elem1, const void* elem2)
{
unsigned int *p1, *p2;
p1 = (unsigned int*) elem1;
p2 = (unsigned int*) elem2;
return (*p1 % 10) - (*p2 % 10);
}

#define NUM 5

int main()
{
unsigned int an[NUM] = {8, 123, 11, 10, 4};
mysort(an, NUM, sizeof(unsigned int), MyCompare);
for(int i = 0; i < NUM; i++)
printf("%d ", an[i]);
return 0;
}