Function Templates in C++

Overloading template functions:

Template functions can be overloaded with usual functions or other template function. In case they are overloaded with usual function, the non-template function will only be called in case of exact match. For example:

    template<class T> void fun(T x, T y)
    {
        cout << "Template" << endl;
    }
    void fun(int w, int z)
    {
        cout << "Non-Template" << endl;
    }
    int main()
    {
        fun( 1 ,  2 );          // Non-Template. Exact Match
        fun('a', 'b');          // Template.
        fun( 1 , 'b');          // Non-Template. Erroneous to call template
        fun<char>('a', 'b');    // Template. Explicit Template call
    }

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