[Condor-users] condor rewrites my file instead of reading it, why???

[鲁敏 <lumiousy@xxxxxxxxxxxx>]

I did a small test with condor,it seems something wrong.
//the "test.cpp"
//function: Read a float number from an existing file config.ini,

//and write it to another new file test.txt
#include "stdio.h"
#include "fstream.h"
void main()
{
 ifstream  fin;  //define an input file stream
 fin.open("config.ini"); //  open the existing non-empty config.ini file
 float c;
 fin>>c;  // read the float number to variable c

 ofstream fout("test.txt"); //define an output file
 fout<<c; //output c to test.txt
 fin.close();
 fout.close();
}

////////////////////////////////////////

It runs correctly itself. But when i submit it to condor,the config.ini was rewrote to be empty.

  I am a new user , can anybody help me ???Thank you very much! 

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