test.py

  @needs_dlfcn
  def test_dylink_global_ctor_and_stack(self):
    # a global ctor in the main module must not call a side module before the side module is
    # all set up - otherwise, the stack may be in the wrong place.
    self.emcc_args += ['-g']
    with env_modify({'EMCC_FORCE_STDLIBS': 'libc++'}):
      self.dylink_test(header=r'''
    #include<string>

    const int gStudent = 10;

    class Student{
    private:
      std::string name;
    public:
      Student(std::string);
      virtual void display();
    };

    const Student gOneStudent("gOneStudent");

  ''', main=r'''
    #include "header.h"
    #include <iostream>

    using namespace std;

    int main(int argc, char *argv[]){
       Student s("Angad");
       s.display();

       cout  <<"\ngStudent=" << gStudent  << std::flush;
        cout  << std::endl;

       return 0;
    }
        ''', side=r'''
    #include <iostream>
    #include "header.h"
    using namespace std;

    Student::Student(string name):name(name){}

    void Student::display(){
      cout << "A student with name " << this->name << endl;
    }''', expected=['A student with name Angad'])