C / C++ / MFC

#include "BufferedNode.h"<br />
#include "Buffer.h"<br />
#include "Vector.h"<br />
#include <strstream><br />
#include <math.h><br />
<br />
#ifdef HAVE_VALUES_H<br />
#include <values.h><br />
#endif<br />
<br />
#ifdef HAVE_FLOAT_H<br />
#include <float.h><br />
#endif<br />
<br />
class Entropy;<br />
<br />
DECLARE_NODE(Entropy)<br />
/*Node<br />
 *<br />
 * @name Entropy<br />
 * @category DSP:Misc<br />
 * @description Calculates the entropy of a vector<br />
 *<br />
 * @input_name INPUT<br />
 * @input_type Vector<float><br />
 * @input_description Input vector<br />
 *<br />
 * @output_name OUTPUT<br />
 * @output_type Vector<float><br />
 * @output_description Entropy value (vector of 1)<br />
 *<br />
END*/<br />
<br />
<br />
class Entropy : public BufferedNode {<br />
   <br />
   int inputID;<br />
   int outputID;<br />
<br />
public:<br />
   Entropy(string nodeName, ParameterSet params)<br />
      : BufferedNode(nodeName, params)<br />
<br />
   {<br />
      inputID = addInput("INPUT");<br />
      outputID = addOutput("OUTPUT");<br />
   }<br />
<br />
   void calculate(int output_id, int count, Buffer &out)<br />
   {<br />
      ObjectRef inputValue = getInput(inputID, count);<br />
<br />
      const Vector<float> &in = object_cast<Vector<float> > (inputValue);<br />
      int inputLength = in.size();<br />
<br />
      Vector<float> &output = *Vector<float>::alloc(1);<br />
      out[count] = &output;<br />
<br />
      float s2=0;<br />
      float entr=0;<br />
      for (int i=0;i<inputLength;i++)<br />
      {<br />
         s2+=in[i]*in[i];<br />
      }<br />
      s2 = 1/s2;<br />
<br />
      for (int i=0;i<inputLength;i++)<br />
      {<br />
	 if (in[i] != 0)<br />
	    entr -= s2*in[i]*in[i] * log(s2*in[i]*in[i]);<br />
      }<br />
      //cout << entr << endl;<br />
      output[0] = entr;<br />
   }<br />
<br />
};<br />

<br />
&lt;code&gt;#include&lt;iostream.h&gt;   <br />
#include&lt;math.h&gt;   <br />
void hanming()   <br />
{   <br />
int i,n,k=2;   <br />
int h[20];   <br />
for(i=0;i&lt;20;i++)h[i]=0;   <br />
cout&lt;&lt;"bla bla"&lt;&lt;endl; cin=""&gt;&gt;n;   <br />
while(pow(2,k)&lt;n+k+1)k++; cout=""&gt;&lt;&lt;"bla bla"&lt;&lt;endl; for(i="1;i&lt;=n+k;i++){" if(i!="1&amp;&amp;i!=2&amp;&amp;i!=4&amp;&amp;i!=8)cin"&gt;&gt;h[i];   <br />
}   <br />
h[1]=(h[3]+h[5]+h[7]+h[9]+h[11]+h[13]+h[15])%2;   <br />
h[2]=(h[3]+h[6]+h[7]+h[10]+h[11]+h[14]+h[15])%2;   <br />
h[4]=(h[5]+h[6]+h[7]+h[12]+h[13]+h[14]+h[15])%2;   <br />
h[8]=(h[9]+h[10]+h[11]+h[12]+h[13]+h[14]+h[15])%2;   <br />
for(i=1;i&lt;=n+k;i++)cout&lt;&lt;h[i]; jiaoyan(int="" a[],int="" n)="" {="" i,p1,p2,p4,p8,m;="" int="" h[20];="" for(i="0;i&lt;n;i++)h<br />
<br />
[i+1]=a[i];" k="2;" p1="(h[1]+h[3])%2;" p2="(h[2]+h[3])%2;" m="2*p2+p1;" return="" m;="" }="" if(n="=3){"&gt;=5&amp;&amp;n&lt;=7){   <br />
// k=3;   <br />
p1=(h[1]+h[3]+h[5]+h[7])%2;   <br />
p2=(h[2]+h[3]+h[6]+h[7])%2;   <br />
p4=(h[4]+h[5]+h[6]+h[7])%2;   <br />
m=4*p4+2*p2+p1;   <br />
return m;   <br />
}   <br />
if(n&gt;=9&amp;&amp;n&lt;=15){   <br />
//k=4;   <br />
p1=(h[1]+h[3]+h[5]+h[7]+h[9]+h[11]+h[13]+h[15])%2;   <br />
p2=(h[2]+h[3]+h[6]+h[7]+h[10]+h[11]+h[14]+h[15])%2;   <br />
p4=(h[4]+h[5]+h[6]+h[7]+h[12]+h[13]+h[14]+h[15])%2;   <br />
p8=(h[8]+h[9]+h[10]+h[11]+h[12]+h[13]+h[14]+h[15])%2;   <br />
m=8*p8+4*p4+2*p2+p1;   <br />
return m;   <br />
}   <br />
else{   <br />
cout&lt;&lt;"bla bla"&lt;&lt;endl; return="" -1;="" }="" ����="" void="" main()="" {="" hanming();="" coco;="" int="" i,n,m,h[20];="" <br />
<br />
cout=""&gt;&lt;&lt;endl; cout=""&gt;&lt;&lt;"bla bla"&lt;&lt;endl; cin=""&gt;&gt;n;   <br />
cout&lt;&lt;"bla bla"&lt;&lt;endl; for(i="0;i&lt;n;i++)cin"&gt;&gt;h[i];   <br />
m=jiaoyan(h,n);   <br />
if(m==0)cout&lt;&lt;"bla bla"&lt;&lt;endl; if(m!="0)cout&lt;&lt;"bla bla"&lt;&lt;m;" cout=""&gt;&lt;&lt;endl; cin=""&gt;&gt;coco;   <br />
}

CImage img;
img.Load(_T("D:\\1.png"));

BOOL bIsTrans = img.IsTransparencySupported(); // here returns true.
img.Draw(pDC->GetSafeHdc(), 20, 20); // the image display
                                        // but background not transpanret.