file output.
What am i doing wrong here? The file distances.txt stays empty even when i get output by the cout.
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int main ()
{
int i,j;
float l;
ofstream myfile ("distances.txt");
myfile.open("distances.txt");
float distances[5][5],pos[5][2],param;
bool neighbors[3][3];
for(i=0;i<5;i++)
{
cout<<"dose to x tou node "<<i+1<<" ";
cin >> pos[i][1];
cout << "dose to psi tou node " << i+1<<" ";
cin >> pos[i][2];
}
for(j=0;j<5;j++)
{
for(i=j+1;i<5;i++)
{
param=(pos[j][1]-pos[i][1])*(pos[j][1]-pos[i][1])+(pos[j][2]-pos[i][2])*(pos[j][2]-pos[i][2]);
l=sqrt(param);
distances[j][i]=l;
if (l<4)
{
neighbors[j][i]=true;
myfile<<j+1<<","<<i+1<<"=neighbors" << endl;
cout<<j+1<<","<<i+1<<"=neighbors" << endl;
}
else neighbors[j][i]=false;
}
}
myfile.close();
wait(200);
}
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Maybe program doesn't enter in scope of if
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if (l<4)
{
neighbors[j][i]=true;
myfile<<j+1<<","<<i+1<<"=neighbors" << endl;
cout<<j+1<<","<<i+1<<"=neighbors" << endl;
}
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BTW , you don't need to enter file name twice
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ofstream myfile ("distances.txt");
myfile.open("distances.txt"); // <-- this line is unecessary
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Thanks. I erased the line you indicated and it worked.
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