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7183152
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0
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0
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2011-08-24T22:38:22.320
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2011-08-24T22:38:22.320
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7182963
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<p>Marcelo Cantos's answer is, of course, the proper way to do things. However, there is the complicated and crazy workaround of specialization. (Not recommended.)</p> <pre><code>//if it's a class, inherit from it to get public members template<class T> class proxy_element : public T { ... proxy_element(Vector<T>& m_parent, const size_type index); proxy_elem& operator=(const T& rhs); // modifies data so invalidate on other memories bool operator==(const proxy_elem& rhs) // only read, just copy data back. ... }; //pretend to be a pointer template<> class proxy_element<T*> { ... proxy_element(Vector<T>& m_parent, const size_type index); proxy_elem& operator=(const T& rhs); // modifies data so invalidate on other memories bool operator==(const proxy_elem& rhs) // only read, just copy data back. ... }; //otherwise, pretend to be primitive #define primitive_proxy(T) \ template<> class proxy_element { ... proxy_element(Vector<T>& m_parent, const size_type index); proxy_elem& operator=(const T& rhs); // modifies data so invalidate on other memories bool operator==(const proxy_elem& rhs) // only read, just copy data back. ... }; primitive_proxy(char) primitive_proxy(unsigned char) primitive_proxy(signed char) //this is distinct from char remember primitive_proxy(short) primitive_proxy(unsigned short) primitive_proxy(int) primitive_proxy(unsigned int) primitive_proxy(long) primitive_proxy(unsigned long) primitive_proxy(long long) primitive_proxy(unsigned long long) primitive_proxy(char16_t) //if GCC primitive_proxy(char32_t) //if GCC primitive_proxy(wchar_t) primitive_proxy(float) primitive_proxy(double) primitive_proxy(long double) </code></pre>
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1. POVector, proxy class and dot operator in C++
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