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From: Daniel Frey (daniel.frey_at_[hidden])
Date: 2002-10-24 06:59:53
Marc Duflot wrote:
>
> I extended your code with the following lines
>
> X x3 = f() ; cout << endl;
> X x4 = g() ; cout << endl;
>
> > }
>
> To my surprise, the results for (x3,x4) are not the same as the ones for
> (x1,x2) with some compilers :
Hm, interesting. As I said, I also added X( f() ); and X( g() ); which
gave some surprising results. Maybe we should re-run the tests with the
following code:
#include <iostream>
using namespace std;
struct X
{
X() { cout << "X"; }
X( const X& ) { cout << "C"; }
};
X f()
{
return X();
}
X g()
{
X x;
return x;
}
#define TEST( code ) \
cout << #code << "\t: "; code; cout << endl
int main()
{
TEST( f() );
TEST( g() );
TEST( X( f() ) );
TEST( X( g() ) );
TEST( X x1( f() ); );
TEST( X x2( g() ); );
TEST( X x3 = f(); );
TEST( X x4 = g(); );
}
Regards, Daniel
-- Daniel Frey aixigo AG - financial training, research and technology Schloß-Rahe-Straße 15, 52072 Aachen, Germany fon: +49 (0)241 936737-42, fax: +49 (0)241 936737-99 eMail: daniel.frey_at_[hidden], web: http://www.aixigo.de
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