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EventClient.cpp
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39 lines (27 loc) · 820 Bytes
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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include <iostream>
#include <typeinfo>
#define CATCH_CONFIG_MAIN
#include "lib/catch.hpp"
class A
{
public:
virtual void Foo() {}
};
class B : public A
{
public:
void Foo() {}
};
TEST_CASE("EventClient")
{
// Checks Pointer-to-Member-Functions (PMF)
// used by CEventClient to detect if a virtual function is overriden
// and so if the derived class wants the event
//CHECK(&A::Foo == &B::Foo); // undefined for virtual methods
// old way using gcc's pmf casting extension (illegal in iso c++)
//CHECK(reinterpret_cast<void(*)()>(&A::Foo) != reinterpret_cast<void(*)()>(&B::Foo));
// new way should work everywhere
CHECK(typeid(&A::Foo) != typeid(&B::Foo));
CHECK(typeid(&A::Foo) == typeid(&A::Foo));
}