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RCP_ForwardDeclUnitTests.cpp
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5// Teuchos: Common Tools Package
6// Copyright (2004) Sandia Corporation
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43
44#include "Teuchos_RCP.hpp"
46
47
48/*
49 * This test checks that you can use non-owning Teuchos::RCP with pointers to
50 * types that are only forward declared and not defined.
51 */
52
53namespace DummyNS {class UndefinedType;}
54
55namespace Teuchos {
57} // namespace Teuchos
58
59
60namespace {
61
62
63using Teuchos::rcp;
64using Teuchos::rcpFromRef;
65using Teuchos::rcpFromUndefRef;
66using Teuchos::RCP;
67
68using DummyNS::UndefinedType;
69
70
71TEUCHOS_UNIT_TEST( RCP, ForwardDeclaredUndefined )
72{
73 // This test ensures that you can declare a null RCP object to an undefined
74 // type without trouble.
75 RCP<UndefinedType> ut_rcp;
76}
77
78
79TEUCHOS_UNIT_TEST( RCP, ForwardDeclaredUndefined_rcp )
80{
81 // This test ensures that you can set a pointer to an undefined type without
82 // trouble. Note that this has to be a non-owning RCP otherwise there will
83 // be issues with the destructor call.
84 UndefinedType *ut_ptr = 0;
85 RCP<UndefinedType> ut_rcp =
86#if defined(HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR)
87 rcpFromUndefRef(*ut_ptr)
88 // In this case, you have to use rcpFromUndefRef(...) in this case instead
89 // of rcpFromRef() because the latter requires the object to be defined in
90 // order to call dynamic_cast<const void*>(...) in order to get the base
91 // object address needed for RCPNode tracing.
92#else
93 rcpFromRef(*ut_ptr)
94 // In this case, you can use rcpFromRef(...) because the object's baseq
95 // address will not be looked up using dynamic_cast and no deallocator
96 // needing to know the object's will be compiled.
97#endif
98 ;
99}
100
101
102} // namespace
Reference-counted pointer class and non-member templated function implementations.
#define TEUCHOS_TYPE_NAME_TRAITS_BUILTIN_TYPE_SPECIALIZATION(TYPE)
Unit testing support.
#define TEUCHOS_UNIT_TEST(TEST_GROUP, TEST_NAME)
Macro for defining a (non-templated) unit test.
Smart reference counting pointer class for automatic garbage collection.
TEUCHOS_DEPRECATED RCP< T > rcp(T *p, Dealloc_T dealloc, bool owns_mem)
Deprecated.