utf-8, unicode, gb2312格式串转换之-c语言版 - 平凡中的不平凡 - 博客园.htm

最为全面的c++内存模型探秘。不管是初学者还是老手

width=11 align=top><SPAN class=cnblogs_code_Collapse 
id=Code_Closed_Text_151722>Code</SPAN><SPAN id=Code_Open_Text_151722><BR><!--<br /><br />Code highlighting produced by Actipro CodeHighlighter (freeware)<br />http://www.CodeHighlighter.com/<br /><br />--><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">&nbsp;不可以移植，不推荐使用</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN style="COLOR: #0000ff">int</SPAN><SPAN 
style="COLOR: #000000">&nbsp;ReinterpretTest()<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #0000ff">struct</SPAN><SPAN 
style="COLOR: #000000">&nbsp;dat&nbsp;{&nbsp;</SPAN><SPAN 
style="COLOR: #0000ff">short</SPAN><SPAN 
style="COLOR: #000000">&nbsp;a;&nbsp;</SPAN><SPAN 
style="COLOR: #0000ff">short</SPAN><SPAN 
style="COLOR: #000000">&nbsp;b;};<BR>&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #0000ff">long</SPAN><SPAN 
style="COLOR: #000000">&nbsp;value&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #800080">0x00100020</SPAN><SPAN 
style="COLOR: #000000">;<BR>&nbsp;&nbsp;&nbsp;&nbsp;dat&nbsp;</SPAN><SPAN 
style="COLOR: #000000">*</SPAN><SPAN 
style="COLOR: #000000">&nbsp;pd&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN 
style="COLOR: #000000">&nbsp;reinterpret_cast</SPAN><SPAN 
style="COLOR: #000000">&lt;</SPAN><SPAN 
style="COLOR: #000000">dat&nbsp;</SPAN><SPAN 
style="COLOR: #000000">*&gt;</SPAN><SPAN 
style="COLOR: #000000">&nbsp;(</SPAN><SPAN 
style="COLOR: #000000">&amp;</SPAN><SPAN 
style="COLOR: #000000">value);<BR>&nbsp;&nbsp;&nbsp;&nbsp;std::cout&nbsp;</SPAN><SPAN 
style="COLOR: #000000">&lt;&lt;</SPAN><SPAN 
style="COLOR: #000000">&nbsp;pd</SPAN><SPAN 
style="COLOR: #000000">-&gt;</SPAN><SPAN 
style="COLOR: #000000">a&nbsp;</SPAN><SPAN 
style="COLOR: #000000">&lt;&lt;</SPAN><SPAN 
style="COLOR: #000000">&nbsp;std::endl;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">&nbsp;0x0020</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;std::cout&nbsp;</SPAN><SPAN 
style="COLOR: #000000">&lt;&lt;</SPAN><SPAN 
style="COLOR: #000000">&nbsp;pd</SPAN><SPAN 
style="COLOR: #000000">-&gt;</SPAN><SPAN 
style="COLOR: #000000">b&nbsp;</SPAN><SPAN 
style="COLOR: #000000">&lt;&lt;</SPAN><SPAN 
style="COLOR: #000000">&nbsp;std::endl;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">&nbsp;0x0010</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #0000ff">return</SPAN><SPAN 
style="COLOR: #000000">&nbsp;</SPAN><SPAN style="COLOR: #800080">0</SPAN><SPAN 
style="COLOR: #000000">;<BR>}<BR><BR>typedef&nbsp;</SPAN><SPAN 
style="COLOR: #0000ff">void</SPAN><SPAN 
style="COLOR: #000000">&nbsp;(</SPAN><SPAN style="COLOR: #000000">*</SPAN><SPAN 
style="COLOR: #000000">Fun)();<BR><BR></SPAN><SPAN 
style="COLOR: #0000ff">int</SPAN><SPAN 
style="COLOR: #000000">&nbsp;Testing()<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;std::cout&nbsp;</SPAN><SPAN 
style="COLOR: #000000">&lt;&lt;</SPAN><SPAN 
style="COLOR: #000000">&nbsp;</SPAN><SPAN style="COLOR: #800000">"</SPAN><SPAN 
style="COLOR: #800000">Testing</SPAN><SPAN style="COLOR: #800000">"</SPAN><SPAN 
style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">&lt;&lt;</SPAN><SPAN 
style="COLOR: #000000">&nbsp;std::endl;<BR>&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #0000ff">return</SPAN><SPAN 
style="COLOR: #000000">&nbsp;</SPAN><SPAN style="COLOR: #800080">10</SPAN><SPAN 
style="COLOR: #000000">;<BR>}<BR><BR></SPAN><SPAN 
style="COLOR: #0000ff">void</SPAN><SPAN 
style="COLOR: #000000">&nbsp;ReinterpretTest2()<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">Fun&nbsp;f&nbsp;=&nbsp;(Fun)Testing;<BR>&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000">f();</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;Fun&nbsp;f&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN 
style="COLOR: #000000">&nbsp;reinterpret_cast</SPAN><SPAN 
style="COLOR: #000000">&lt;</SPAN><SPAN style="COLOR: #000000">Fun</SPAN><SPAN 
style="COLOR: #000000">&gt;</SPAN><SPAN 
style="COLOR: #000000">(Testing);<BR>&nbsp;&nbsp;&nbsp;&nbsp;f();<BR>}</SPAN></SPAN></DIV>
<P>&nbsp;</P>
<P>三 总结</P>
<P><SPAN 
style="COLOR: #ff0000">在C++一般更推荐新加的static_cast，const_cast，dynamic_cast和reinterpret_cast转化方式；</SPAN></P>
<DIV id=MySignature>
<P>感谢，Thanks！<BR><BR>作者：<A href="http://itech.cnblogs.com/">iTech</A><BR>出处：<A 
href="http://itech.cnblogs.com/">http://itech.cnblogs.com/</A> 
<BR>转载：本文版权归作者iTech所有，转载请注明出处，不得用于商业用途！</P></DIV>
<DIV id=EntryTag>Tag标签: <A 
href="http://www.cnblogs.com/itech/tag/[Cpp对象模型]/">[Cpp对象模型]</A></DIV></DIV>
<DIV class=postDesc>posted @ 2009-03-01 19:36 <A 
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