registry_via_id_test_2.cc

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// ======================================================================
//
// test registry_via_id's requirement that the value type have
// a member function that is:
//   1) named id, and
//   2) returns a value of the key type
//
// ======================================================================

#include "cetlib/registry_via_id.h"

typedef int success_t;
typedef char* fail_t; // anything other than success_t

struct val {
  success_t
  // fail_t
  id() const
  {
    return 0;
  }
};

typedef cet::registry_via_id<success_t, val> reg;

int
main()
{
  reg::put(val());

  return 0;
} // main()