Pointers to Functions

#include <stdio.h> int dayu(int *,int *); int dengyu(int *,int *); int xiaoyu(int *,int *); main() { printf("%d/n",panduan(1,2,(int (*)(void *,void *))dayu)); printf("%d/n",panduan(1,2,(int (*)(void *,void *))xiaoyu)); printf("%d/n",panduan(1,2,(int (*)(void *,void *))dengyu)); } int panduan(int a,int b,int (*comp)(void *,void *)) { return (*comp)(a,b); } int dayu(int *a,int *b) { if(a>b) return 1; return 0; } int dengyu(int a,int b) { if(a==b) return 1; return 0; } int xiaoyu(int a,int b) { if(a<b) return 1; return 0; }