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LINUXÄÚºËÖÐminºÍmaxºêµÄѧϰ

add linux kernel min, max define:
include/linux/kernel.h
/*
 * min()/max() macros that also do
 * strict type-checking.. See the
 * "unnecessary" pointer comparison.
 */
#define min(x,y) \
(__extension__\
({ \
        typeof(x) _x = (x);     \
        typeof(y) _y = (y);     \
        (void) (&_x == &_y);            \
        _x < _y ? _x : _y; })     \
)
#define max(x,y) \
(__extension__\
({ \
        typeof(x) _x = (x);     \
        typeof(y) _y = (y);     \
        (void) (&_x == &_y);            \
        _x > _y ? _x : _y; })     \
)
 
 
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2. ΪºÎÒªÓÃ({  })ÕâÑùµÄ½á¹¹°üΧ´úÂë¿é
3. ÄǸö__extension__ÊÇʲô¶«¶«£¿ £¨Óеİ汾ûÓÐÕâ¸ö__extension__)
4. (void)(&_x == &_y)ÓÐʲôÓ㬲»ÊÇÍÑÁË¿ã×Ó·ÅÆ¨Ã´
 
 
 
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1. Èç¹ûÓû§Ê¹ÓÃÁËmin(x++,y++)»áÓÐÔõÑùµÄ½á¹û£¿
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2. GCCµÄÀ©Õ¹ÀïÏñ{ }ÕâÖֽṹҲÊÇ¿ÉÒÔÓÐÖµµÄ£¬ÆäÖµ¾ÍÊÇÆäÖÐ×îºóÒ»¸öÓï¾äµÄÖµ£¨°üÀ¨×óÖµ£©£¬ÕâÀïÍâÃæÔÙ¼Ó¸öÀ¨ºÅÊÇΪÁ˱£ÏÕ£¬±ÈÈ磺
   printf("²Â²Â»áÏÔʾʲô£¿\n´ð°¸ÊÇ:%d\n",({
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LinuxϱàÒëºÍ°²×°Èí¼þµÄ·½·¨

For all those who are beginners in any linux(ubuntu) find hard to find the package files of their distro and end up in finding an source package(which is either in tar.gz or .gz).. so now people think how to install these source files…..
lets now see how would you be installing source files ......

WindowsÍê³É¶Ë¿ÚÓëLinux epoll¼¼Êõ¼ò½é

WindowsÍê³É¶Ë¿ÚÓëLinux epoll¼¼Êõ¼ò½é
2009-09-16 09:13
WINDOWSÍê³É¶Ë¿Ú±à³Ì
1¡¢»ù±¾¸ÅÄî
2¡¢WINDOWSÍê³É¶Ë¿ÚµÄÌØµã
3¡¢Íê³É¶Ë¿Ú£¨Completion Ports £©Ïà¹ØÊý¾Ý½á¹¹ºÍ´´½¨
4¡¢Íê³É¶Ë¿ÚÏ̵߳Ť×÷Ô­Àí
5¡¢WindowsÍê³É¶Ë¿ÚµÄʵÀý´úÂë
LinuxµÄEPollÄ£ÐÍ
1¡¢ÎªÊ²Ã´selectÂäºó
2¡¢ÄÚºËÖÐÌá¸ßI/OÐÔÄܵÄз½·¨epoll
3 ......

ÔÚLinuxϰ²×°DNW


1. ÏÂÔØLinuxÏÂDNWµÄPC¶ËUSBÇý¶¯ºÍдÈ빤¾ß
ÏÂÔØµØÖ·£ºÒÑÉÏ´«ÖÁCSDN
2. ±àÒëPC¶ËUSBÇý¶¯ºÍдÈ빤¾ß
2.1 ½âѹËõ
$ tar xzvf /path/to/dnw_linux.tgz
dnw_linux/
dnw_linux/secbulk/
dnw_linux/secbulk/Makefile
dnw_linux/secbulk/secbulk.c
dnw_linux/dnw/
dnw_linux/dnw/dnw.c
 
......

ÔÚLinuxÏÂÐ޸Ļ·¾³±äÁ¿PATH

source file :
http://hi.baidu.com/neugraduzyq/blog/item/5602432f6a1a755a4ec22666.html
ÎÒÏëÔÚPATHϼÓÒ»¸ö/tools/binµÄ·¾¶ÓÃexport PATH=$PATH:/tools/binºóÓ¦¸ÃÊǼÓÉÏÈ¥ÁË£¬µ«ÊÇÓà echo $PATH »¹ÊÇÏÔʾµÄÔ­À´µÄ$PATH±äÁ¿µÄÖµ£¬¸Ð¾õÓÃexport PATH=$PATH:/tools/binÖ»ÊÇÔÚÔ­À´µÄ$PATH±äÁ¿ºó¼ÓÁËÒ»¸ö·¾¶µ½µ±Ç°µ ......
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