description Learn more about: How to: Use gcnew to Create Value Types and Use Implicit Boxing title How to: Use gcnew to Create Value Types and Use Implicit Boxing ms.date 11/04/2016 helpviewer_keywords gcnew keyword [C++], creating value types boxing, implicit value types, creating ms.assetid ceb48841-d6bd-47be-a167-57f44c961603 How to: Use gcnew to Create Value Types and Use Implicit Boxing Using gcnew on a value type will create a boxed value type, which can then be placed on the managed, garbage-collected heap. Example // vcmcppv2_explicit_boxing4.cpp // compile with: /clr public value class V { public: int m_i; V(int i) : m_i(i) {} }; public ref struct TC { void do_test(V^ v) { if (v != nullptr) ; else ; } }; int main() { V^ v = gcnew V(42); TC^ tc = gcnew TC; tc->do_test(v); } See also Boxing