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How can you achieve partial specialization of a member function within a template class in C ?

Mary-Kate Olsen
Mary-Kate OlsenOriginal
2024-11-16 10:46:03681browse

How can you achieve partial specialization of a member function within a template class in C  ?

Partial Specialization of Class Member Functions

Unlike regular functions, partially specializing only a member function within a template class is not allowed in C . Instead, it is necessary to partially specialize the entire class.

To achieve partial specialization of a member function, the following steps should be taken:

  1. Declare a fully specialized template class for the specific values of the template parameters that require the specialized member function.
  2. Within the specialized class template, define the desired member function.

For example, to create a partial specialization for the Deform() member function in the given code where nValue equals 0, the following code shows how to fix the original code:

// Partial specialization of the Object class for nValue = 0
template <>
class Object<int, 0>
{
private:
    int m_t;
    Object();
public:
    Object(int t): m_t(t) {}
    int Get() { return m_t; }
    Object& Deform()
    {
        std::cout << "Specialized\n";
        m_t = -1;
        return *this;
    }
};

With these modifications, the code will now correctly partially specialize the Deform() member function for nValue equal to 0.

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