template function for generic parameter and pointer to generic parameter : template parameter « template « C++ Tutorial






  1. C++ Tutorial
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  3. template parameter
/* The following code example is taken from the book
 * "C++ Templates - The Complete Guide"
 * by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002
 *
 * (C) Copyright David Vandevoorde and Nicolai M. Josuttis 2002.
 * Permission to copy, use, modify, sell and distribute this software
 * is granted provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied
 * warranty, and with no claim as to its suitability for any purpose.
 */
#include <iostream>

template<typename T>
int f(T)
{
    return 1;
}

template<typename T>
int f(T*)
{
    return 2;
}


int main()
{
    std::cout << f<int*>((int*)0) << std::endl;
    std::cout << f<int>((int*)0)  << std::endl;
}

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13.4.template parameter
13.4.1.Demonstrate non-type template arguments
13.4.2.Default template arguments
13.4.3.primary template: yield second or third argument depending on first argument
13.4.4.primary template to compute sqrt(N) via iteration and partial specialization to end the iteration
13.4.5.Sqrt: primary template: yield second or third argument depending on first argument
13.4.6.Loop with generic parameter
13.4.7.Define implicit_cast
13.4.8.template function for generic parameter and pointer to generic parameter
13.4.9.Nested template type
13.4.10.Use template parameter as constructor parameter