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66 lines
1.1 KiB
66 lines
1.1 KiB
#include <iostream>
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#include <memory>
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#include <cmext/memory>
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namespace {
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class Base
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{
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public:
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virtual ~Base() = default;
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};
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class Derived : public Base
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{
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public:
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~Derived() override = default;
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void method() {}
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};
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template <typename T>
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class Wrapper
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{
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public:
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Wrapper(T* v)
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: value(v)
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{
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}
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~Wrapper() { delete this->value; }
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T* get() const { return this->value; }
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private:
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T* value;
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};
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bool testReferenceCast()
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{
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std::cout << "testReferenceCast()" << std::endl;
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std::unique_ptr<Base> u(new Derived);
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cm::static_reference_cast<Derived>(u).method();
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cm::dynamic_reference_cast<Derived>(u).method();
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std::shared_ptr<Base> s(new Derived);
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cm::static_reference_cast<Derived>(s).method();
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cm::dynamic_reference_cast<Derived>(s).method();
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// can also be used with custom wrappers
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Wrapper<Base> w(new Derived);
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cm::static_reference_cast<Derived>(w).method();
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cm::dynamic_reference_cast<Derived>(w).method();
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return true;
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}
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}
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int testCMExtMemory(int /*unused*/, char* /*unused*/[])
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{
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if (!testReferenceCast()) {
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return 1;
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}
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return 0;
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}
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