shiftem.c

原创于 2007-11-08 21:09:00 发布 · 319 阅读

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name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #include <stdio.h>

void main(void)
{
unsigned u_val = 1;
signed int value = -1;

   printf("%u (unsigned) shifted left 2 times is %u/n", u_val, u_val << 2);
   printf("%u (unsigned) shifted right 2 times is %u/n", u_val, u_val >> 2);
   u_val = 65535;
   printf("%u (unsigned) shifted left 2 times is %u/n", u_val, u_val << 2);
   printf("%u (unsigned) shifted right 2 times is %u/n", u_val, u_val >> 2);
   printf("%d (signed) shifted left 2 times is %d/n", value, value << 2);
   printf("%d (signed) shifted right 2 times is %d/n", value, value >> 2);
}