<div dir="ltr"><br><br><div class="gmail_quote">On Wed, Aug 25, 2010 at 12:08 PM, Elazar Leibovich <span dir="ltr"><<a href="mailto:elazarl@gmail.com">elazarl@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr"><div class="im"><span style="color: rgb(128, 128, 0);">template</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(0, 0, 0);"><</span><span style="color: rgb(128, 128, 0);">class</span><span style="color: rgb(192, 192, 192);"> </span>a<span style="color: rgb(0, 0, 0);">,</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">class</span><span style="color: rgb(192, 192, 192);"> </span>b<span style="color: rgb(0, 0, 0);">></span>
</div><pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(128, 128, 0);">class</span><span style="color: rgb(192, 192, 192);"> </span>c</pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(0, 0, 0);">{</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">private</span><span style="color: rgb(0, 0, 0);">:</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span>b<span style="color: rgb(192, 192, 192);"> </span>defaultVal<span style="color: rgb(0, 0, 0);">;</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">public</span><span style="color: rgb(0, 0, 0);">:</span></pre><div class="im">
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span>std<span style="color: rgb(0, 0, 0);">::</span>map<span style="color: rgb(0, 0, 0);"><</span>a<span style="color: rgb(0, 0, 0);">,</span>b<span style="color: rgb(0, 0, 0);">></span><span style="color: rgb(192, 192, 192);"> </span>mymap<span style="color: rgb(0, 0, 0);">;</span></pre>
</div><pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><div class="im"><span style="color: rgb(128, 128, 0);">const</span><span style="color: rgb(192, 192, 192);"> </span>b<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(0, 0, 0);">&</span>func<span style="color: rgb(0, 0, 0);">(</span>a<span style="color: rgb(192, 192, 192);"> </span>idx<span style="color: rgb(0, 0, 0);">)</span></div>
</pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(0, 0, 0);">{</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">typename</span><span style="color: rgb(192, 192, 192);"> </span>std<span style="color: rgb(0, 0, 0);">::</span>map<span style="color: rgb(0, 0, 0);"><</span>a<span style="color: rgb(0, 0, 0);">,</span>b<span style="color: rgb(0, 0, 0);">>::</span>iterator<span style="color: rgb(192, 192, 192);"> </span>it<span style="color: rgb(0, 0, 0);">(</span>mymap<span style="color: rgb(0, 0, 0);">.</span>find<span style="color: rgb(0, 0, 0);">(</span>idx<span style="color: rgb(0, 0, 0);">));</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">if</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(0, 0, 0);">(</span>it<span style="color: rgb(0, 0, 0);">!=</span>mymap<span style="color: rgb(0, 0, 0);">.</span>end<span style="color: rgb(0, 0, 0);">())</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">return</span><span style="color: rgb(192, 192, 192);"> </span>it<span style="color: rgb(0, 0, 0);">-></span>second<span style="color: rgb(0, 0, 0);">;</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">else</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(128, 128, 0);">return</span><span style="color: rgb(192, 192, 192);"> </span>defaultVal<span style="color: rgb(0, 0, 0);">;</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(0, 0, 0);">}</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(0, 0, 0);">};</span></pre><pre style="margin: 0px; text-indent: 0px;"><span style="color: rgb(0, 0, 0);"><br></span></pre>The compiler is not sure std::map<a,b>::iterator is a typename or a value.</div>
</blockquote><div>how do i sove that ? can you give a solution ? <br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div dir="ltr"><div>
<br><div class="gmail_quote"><div class="im">2010/8/25 Erez D <span dir="ltr"><<a href="mailto:erez0001@gmail.com" target="_blank">erez0001@gmail.com</a>></span><br>
</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div dir="ltr">hi<div><div></div><div class="h5"><br><br>i am compiling the following code:<br>
<br>1:#include <map><br>2:<br>3:template <class a, class b><br>
4:class c<br>5:{<br>6: private:<br>7: b defaultVal;<br>8: public:<br>
9: std::map<a,b> mymap;<br>10: const b &func(a idx)<br>11: {<br>12: std::map<a,b>::iterator it=mymap.find(a);<br>13: if (it!=mymap.end())<br>
14: return it->second;<br>15: else<br>16: return defaultVal;<br>17: }<br>18:};<br>...<br>...<br><br>compiling it (under cygwin) , i get the following:<br>
<br>$ g++ -c -o kaka.o kaka.cpp<br>kaka.cpp: In member function 'const b& c<a, b>::func(a)':<br>kaka.cpp:12: error: expected `;' before 'it'<br>kaka.cpp:13: error: 'it' was not declared in this scope<br>
<br><br>what's wrong ?<br></div></div></div>
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