qsort函数《代码》

#include <stdio.h>#include <stdlib.h> int compare_ints(const void* a, const void* b){    const int *arg1 = a;    const int *arg2 = b;     return *arg1 - *arg2;} int main(void){    int i;    int ints[] = { -2, 99, 0, -743, 2, 3, 4 };    int size = sizeof ints / sizeof *ints;     qsort(ints, size, sizeof(int), compare_ints);     for (i = 0; i < size; i++) {        printf("%d ", ints[i]);    }     printf("\n");     return EXIT_SUCCESS;}