调用回调函数打印任意类型的数据

print_data.c

/* Copyright(C) 2012 for free
 * All right reserved
 */
/**
 * @file print_any_data.c
 * @synopsis  print any data
 * @author sense, [e-mail]
 * @version 1.0
 * @date 2012-07-02
 */
#include <stdio.h>
#include <stdlib.h>

typedef void(*Print)(void *data);

#pragma message("it's start to complie ...") //测试编译之用


void print_int(void *data)
{
    printf("%d\n",*(int*)data);
}

void print_char(void *data)
{
    printf("%s\n",(char *)data);
}

void dist_print(void *data,Print print)
{
    print(data);
}

int main(int argc,char **argv)
{
    int a = 5;
    char *b = "hello,world";

    dist_print(&a,print_int);
    dist_print(b,print_char);

    return 0;
}

测试：
gcc -g -Wall print_data.c -o print_data