Can't using Track declare a vector or a function.

[Li Huang]

I find that, for example, I can write Track trackArray[] to use Track to declare a array.
But I can not use vector<Track> vec or Track function() or function(Track parameter) . I can not using Track to declare a vector or function or parameters, why and how can I using function or vector with these classes?

[Pavel Demin]

Here is an example of a program using vector<Track>:

/*
command to compile:
g++ test.cpp -o test -I. `root-config --cflags --libs`
*/

#include <vector>
#include <classes/DelphesClasses.h>

using namespace std;

int main()
{
  vector< Track > test;
  return 0;
}

[Li Huang]

Thank you! But I want to compile my script with root, like,after root -l,then .L test.C+ .(using compilation like yours may lead other problems since I want to use the Delphes and root header files.) Can you help me?

[Pavel Demin]

(using compilation like yours may lead other problems since I want to use the Delphes and root header files.)

It's not true. It's just a C++ program. You can include any combination of Delphes, ROOT and any other header files.

I don't understand your problem. The code from my previous comment can be used with .L test.C+.

Here is a slightly modified version that can be saved as test.C:

#include <iostream>
#include <vector>
#include <classes/DelphesClasses.h>

using namespace std;

void test()
{
  vector< Track > test;
  cout << "vector size: " << test.size() << endl;
}

It works without any problem:

$ root -l
root [0] .L test.C+
Info in <TUnixSystem::ACLiC>: creating shared library test_C.so
root [1] test();
vector size: 0