subject_35554.htm

一些关于vc的问答

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序号：35554 发表者：rayjoe 发表日期：2003-04-07 20:41:33
<br>主题：请教一个连接错误，关于vector.
<br>内容：这是程序，很简单，就是比较两个vector，看看是否相等。<BR><BR><BR>#include &lt;iostream.h&gt;<BR>#include &lt;vector&gt;<BR><BR>using namespace std;<BR><BR>int main(){<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;int ia[]={1,2,3,4,5,6};<BR>&nbsp;&nbsp;&nbsp;&nbsp;int ib[]={3,4,5,6,7,8};<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;vector&lt;int&gt; ivec1(ia, ia+3);<BR>&nbsp;&nbsp;&nbsp;&nbsp;vector&lt;int&gt; ivec2(ia, ia+6);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;bool is_equal(const vector&lt;int&gt;,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;const vector&lt;int&gt; );<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;if(is_equal(ivec1, ivec2))<BR>&nbsp;&nbsp;&nbsp;&nbsp;cout&lt;&lt;"equal"&lt;&lt;endl;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;return 0;<BR>}<BR><BR>bool is_equal(const vector&lt;int&gt; &amp;v1, const vector&lt;int&gt; &amp;v2)<BR>{<BR>&nbsp;&nbsp; int _size;&nbsp;&nbsp;<BR><BR>&nbsp;&nbsp;_size= v1.size()&lt;v2.size() ? v1.size() : v2.size();<BR><BR>&nbsp;&nbsp;for(int ix=0; ix&lt;_size; ix++){<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(v1[ix]!=v2[ix])<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return false;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp; return true;<BR>}<BR><BR>错误如下：<BR> error LNK2001: unresolved external symbol "bool __cdecl is_equal(class std::vector&lt;int,class std::allocator&lt;int&gt; &gt;,class std::vector&lt;int,class std::allocator&lt;int&gt; &gt;)" (?is_equal@@YA_NV?$vector@HV?$allocator@H@std@@@std@@0@Z)<BR><BR>
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<font color=red>答案被接受</font><br>回复者：sdfsd 回复日期：2003-04-07 21:07:49
<br>内容：int main(){<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;int ia[]={1,2,3,4,5,6};<BR>&nbsp;&nbsp;&nbsp;&nbsp;int ib[]={3,4,5,6,7,8};<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;vector&lt;int&gt; ivec1(ia, ia+3);<BR>&nbsp;&nbsp;&nbsp;&nbsp;vector&lt;int&gt; ivec2(ia, ia+6);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;////////////////////////////////////<BR>&nbsp;&nbsp;&nbsp;&nbsp;bool is_equal(const vector&lt;int&gt; &amp;,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;const vector&lt;int&gt; &amp;);<BR>&nbsp;&nbsp;&nbsp;&nbsp;////////////////////////////////////<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;if(is_equal(ivec1, ivec2))<BR>&nbsp;&nbsp;&nbsp;&nbsp;cout&lt;&lt;"equal"&lt;&lt;endl;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;return 0;<BR>}<BR>
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回复者：rayjoe 回复日期：2003-04-07 21:24:50
<br>内容：说得没错，我已经搞定了，谢谢:)
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