#define  _CRT_SECURE_NO_WARNINGS 1
#define  _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int cmp_float(const void* e1, const void* e2) {       //αȽ
	if ((*(float*)e1 > *(float*)e2) > 0)
		return 1;
	else if ((*(float*)e1 < *(float*)e2) > 0)
		return -1;
	return 0;

}
void swap(char* buff1, char* buff2, int width) {
	int i = 0;
	char k;
	for (i = 0; i < width; i++) {
		k = *buff1;
		*buff1 = *buff2;
		*buff2 = k;
		buff1++;
		buff2++;
	}
}
void qsort(void* base, int num, int width, int(*cmp)(const void* e1, const void* e2)) {
	int i = 0, j = 0;
	for (i = 0; i < num - 1; i++) {
		for (j = 0; j < num - 1 - i; j++) {
			if ((cmp((char*)base + j * width, (char*)base + (j + 1) * width)) > 0)
				swap((char*)base + j * width, (char*)base + (j + 1) * width, width);
		}
	}
}
int main() {
	int i = 0;
	float arr[] = { 10.0f,5.0f,8.0f,76.0f,955.0f,120.0f,74.0f };
	int sz_float = sizeof(arr) / sizeof(arr[0]);
	for (i = 0; i < sz_float; i++)
		printf("%f\t", arr[i]);
	printf("\n");
	qsort(arr, sz_float, sizeof(arr[0]), cmp_float);
	for (i = 0; i < sz_float; i++)
		printf("%f\t", arr[i]);
	return 0;
}