unix 2-1

8
24
2010

if(lseek(STDIN_FILENO,0,SEEK_CUR)==-1)
    printf("can't seek");
else printf("seek ok");

off_t lseek(int fileds,off_t offset,int whence)

whence: SEEK_SET SEEK_CUR SEEK_END

某些设备lseek返回值为负值,所以测试的时候应该小心,不要测试是否小于0,测试是否为-1

Category: unix | Tags: lseek File | Read Count: 1761

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This is a very interesting post and I have learned so much by going through it.

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