Method construct3

tests/test_factory_constructors.cpp:198–198

shared_ptr holder type: pointer:

    // shared_ptr holder type:
    // pointer:
    static TestFactory3 *construct3() { return new TestFactory3(); }
    // holder:
    static std::shared_ptr<TestFactory3> construct3(int a) {
        return std::shared_ptr<TestFactory3>(new TestFactory3(a));