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/** testpolymorph.cpp --- A sequence of polymorphism examples.
*
* Copyright (C) 2009-2017 Free Software Foundation, Inc.
*
* Author: Eric M. Ludlam <eric@siege-engine.com>
*
* This file is part of GNU Emacs.
*
* GNU Emacs is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNU Emacs is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
*/
#include <cmath>
// Test 1 - Functions w/ prototypes
namespace proto {
int pt_func1(int arg1);
int pt_func1(int arg1) {
return 0;
}
}
// Test 2 - Functions w/ different arg lists.
namespace fcn_poly {
int pm_func(void) {
return 0;
}
int pm_func(int a) {
return a;
}
int pm_func(char a) {
return int(a);
}
int pm_func(double a) {
return int(floor(a));
}
}
// Test 3 - Methods w/ different arg lists.
class meth_poly {
public:
int pm_meth(void) {
return 0;
}
int pm_meth(int a) {
return a;
}
int pm_meth(char a) {
return int(a);
}
int pm_meth(double a) {
return int(floor(a));
}
};
// Test 4 - Templates w/ partial specifiers.
namespace template_partial_spec {
template <typename T> class test
{
public:
void doSomething(T t) { };
};
template <typename T> class test<T *>
{
public:
void doSomething(T* t) { };
};
}
// Test 5 - Templates w/ full specialization which may or may not share
// common functions.
namespace template_full_spec {
template <typename T> class test
{
public:
void doSomething(T t) { };
void doSomethingElse(T t) { };
};
template <> class test<int>
{
public:
void doSomethingElse(int t) { };
void doSomethingCompletelyDifferent(int t) { };
};
}
// Test 6 - Dto., but for templates with multiple parameters.
namespace template_multiple_spec {
template <typename T1, typename T2> class test
{
public:
void doSomething(T1 t) { };
void doSomethingElse(T2 t) { };
};
template <typename T2> class test<int, T2>
{
public:
void doSomething(int t) { };
void doSomethingElse(T2 t) { };
};
template <> class test<float, int>
{
public:
void doSomething(float t) { };
void doSomethingElse(int t) { };
void doNothing(void) { };
};
}
// End of polymorphism test file.
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