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#include <string>
#include <typeindex>
#include <iostream>
 
struct DummyProduction {
};
 
struct Dep {
};
 
struct Pro {
};
 
class ModuleBase {
};
 
template<typename Production = DummyProduction>
class Provider {
public:
  template<typename... Dependencies>
  Provider(ModuleBase& module, Dependencies... args)
  {
    std::cout << "Provider called!" << std::endl;
  }
  Provider(const Provider&) = delete;
};
 
class TargetController : public ModuleBase,
  public Provider<Pro>,
  public Provider<>
{
public:
  TargetController();
private:
  Dep p;
};
 
TargetController::TargetController() :
  ModuleBase(),
  Provider<Pro>(*this, &p),
  Provider<>(*this),
  p()
{
}
 
int main()
{
  TargetController x;
  return 0;
}

prog.cpp: In constructor 'TargetController::TargetController()':
prog.cpp:42:5: error: use of deleted function 'Provider<Production>::Provider(const Provider<Production>&) [with Production = DummyProduction]'
   p()
     ^
prog.cpp:25:3: note: declared here
   Provider(const Provider&) = delete;
   ^

Standard output is empty