征集各种神奇的C语言代码！

[friendlyhp]

你有没有见过很神奇的C代码，让你看了不得不去佩服叫好的神奇的像艺术品一样的代码，拿来与大家分享吧！

[shenopkss]

这...这...太恐怖了吧

[veizz]

mark

[华芸智森]

0x5f375a86

[菜鸟二号]

献丑
不过这个代码并不神奇，只是我感觉好玩
#include "stdio.h"
#define I main()
#define am {
#define student }
#define a puts("I am a good student!")
#define good ;
I am a good student

[xqyair]

没遇到过

[xqyair]

没遇到过

[likee003]

#include <sys\stat.h>
#include <io.h>
#include <fcntl.h>
#include <share.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <string.h>
#define MAX_CLU_BYTES 65536
FILE *fo;
int fh;
__int64 offs,offs1;
__int64 rvi64;
int rv,wrv;
unsigned char buf[MAX_CLU_BYTES];
char ofn[_MAX_PATH];
void main(int argc,char **argv) {
    if (argc<3) {
        printf("Copy File Tail.\n");
        printf("Usage:\n");
        printf("    cft filename.ext offset_begin[-offset_end]\n");
        printf("Copy filename.ext offset_begin[-offset_end] to offset_begin[-offset_end]-filename.ext\n");
        printf("Note: Byte at offset_end is NOT included.\n");
        printf("Example:\n");
        printf("    cft abc.rar 12345\n");
        printf("Copy abc.rar offset 12345-end to 12345-abc.rar\n");
        printf("    cft abc.rar 123-12345\n");
        printf("Copy abc.rar offset 123-12345 to 123-12345-abc.rar\n");
        printf("    cft abc.rar 0xAB-0xCD\n");
        printf("Copy abc.rar offset 0xAB-0xCD to 0xAB-0xCD-abc.rar\n");
        return;
    }
    rv=sscanf(argv[2],"%I64i-%I64i",&offs,&offs1);
    if (rv==0) {
        printf("offset %s is not number\n",argv[2]);
        return;
    }
    fh=_sopen(argv[1],_O_BINARY|_O_RDONLY|_O_RANDOM,_SH_DENYWR);
    if (fh==-1) {
        printf("_sopen %s errno=%d\n",argv[1],errno);
        return;
    }
    if (rv==1) {
        offs1=_filelengthi64(fh);
        if (offs1==-1i64) {
            printf("%I64=_filelengthi64 errno=%d\n",offs1,errno);
            _close(fh);
            return;
        }
    } else {//rv==2
        if (offs1<offs) {
            printf("%s offset_begin>offset_end error\n",argv[2]);
            _close(fh);
            return;
        }
    }
    rvi64=_lseeki64(fh,offs,SEEK_SET);
    if (rvi64!=offs) {
        printf("%I64u=_lseeki64 %I64u errno=%d\n",rvi64,offs,errno);
        _close(fh);
        return;
    }
    sprintf(ofn,"%s-",argv[2]);
    strcat(ofn,argv[1]);
    fo=fopen(ofn,"wb");
    if (fo==NULL) {
        _close(fh);
        printf("fopen %s error\n",ofn);
        return;
    }
    cprintf("\n%I64u\r",offs);
    while (1) {
        rv=_read(fh,buf,(unsigned int)__min(offs1-offs,MAX_CLU_BYTES));
        if (rv==0) break;//
        if (rv<0) {
            fclose(fo);
            _close(fh);
            printf("_read %s offset %I64u error\n",argv[1],offs);
            return;
        }
        wrv=fwrite(buf,1,rv,fo);
        if (wrv!=rv) {
            fclose(fo);
            _close(fh);
            printf("fwrite %s error\n",ofn);
            return;
        } else {
            offs+=rv;
            cprintf("%I64u\r",offs);
            if (offs>=offs1) break;//
        }
    }
    fclose(fo);
    _close(fh);
    printf("Copy %s offset %s to %s OK.\n",argv[1],argv[2],ofn);
}

牛！

[zch82624392]

那是因为溢出了吧~~[Quote=引用 25 楼 howlet2 的回复:]
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
int i = 0;
while (true)
{
if (i < 0)
{
break;
}
else
{
++i;
}
}
return 0;
}
这段代码运行一段时间后能停止，不也是一件神奇的事吗~_~
[/Quote]

[cmdt169]

牛X的很啊。
这样的程序，看几行就头晕！！！

[immjt]

标记，明天看

[cNETLOOK]

好强大

[海会圣贤]

[walw521]

学习！

[changan2001]

bool ispower2(unsign x)
{
return x & (x - 1);
}

[geleg]

mark

[kobeandsiwei]

MARK~~~~

[赵4老师]

个人认为所谓神奇的代码就是“加一字嫌多，减一字嫌少，改一字出错。”的代码

[ab_300]

妈妈的b，自叹不如

[biangxy]

太强了，mark

[mymtom]

Duff's device
http://en.wikipedia.org/wiki/Duff%27s_device

send(to, from, count)
register short *to, *from;
register count;
{
	register n=(count+7)/8;
	switch(count%8){
	case 0:	do{	*to = *from++;
	case 7:		*to = *from++;
	case 6:		*to = *from++;
	case 5:		*to = *from++;
	case 4:		*to = *from++;
	case 3:		*to = *from++;
	case 2:		*to = *from++;
	case 1:		*to = *from++;
		}while(--n>0);
	}
}