Temporary Objects as reference argument in functions

[Dirk Volkmar]

Hi!

We are porting some software to linux, that runs under solaris and windows.  On
these plattforms we use the native compilers (workshop/devstudio).
We have a problem with temporary objects that are passes to functions with
reference parameters. I stripped the code down to an example that looks like the
following code:

class MyClass
{
     public:
          MyClass(long lLong) : m_lLong(lLong) {};
     protected:
          long m_lLong;
};

void test(MyClass & rTest)
{
}
void test(const char * szTest)
{
}
int main()
{
     test(MyClass(1));
     return 0;
}

The compiler gives the following output:
g++ -c main.cpp
main.cpp: In function `int main()':
main.cpp:17: error: no matching function for call to `test(MyClass)'
main.cpp:10: error: candidates are: void test(MyClass&)
main.cpp:13: error:                 void test(const char*)

If I delete the second test function I get the following
g++ -c main.cpp
main.cpp: In function `int main()':
main.cpp:17: error: could not convert `MyClass(1)' to `MyClass&'
main.cpp:10: error: in passing argument 1 of `void test(MyClass&)'

If I declare a local object  instead using a temporary object, it works:
int main()
{
     MyClass aObject(1);
     test(aObject);
     return 0;
}

Looking into the ansi standard I couldn't find that the code is illeagal. Sun
Workshop and Dev Studio have no problems with it, why not gcc?
O.K. I can use the upper workaround, but it is anoying to change hundreds of
lines and don't know  why.
If someone has an explanation for this I would be very happy.

Bye Dirk

--
Diese E-Mail enthaelt vertrauliche oder rechtlich geschuetzte Informationen.
Wenn Sie nicht der beabsichtigte Empfaenger sind, informieren Sie bitte
sofort den Absender und loeschen Sie diese E-Mail. Das unbefugte Kopieren
dieser E-Mail oder die unbefugte Weitergabe der enthaltenenen Informationen
ist nicht gestattet.

The information contained in this message is confidential or protected by
law. If you are not the intended recipient, please contact the sender and
delete this message. Any unauthorised copying of this message or
unauthorised distribution of the information contained herein is prohibited.