Christopher Zimmermann <madro...@zakweb.de> writes:
> Hi,
>
> the following piece of code compiles fine using g++ 4.2.4, but
> fails using g++ 3.3.5 in the base system:
>
> error: operands to ?: have different types
How about something like this...
#include<err.h>
// #define WarnIfNULL(x) ((x) ? (x) : (warn("blub"),(x)))
template<class T>
inline T WarnIfNULL(T x)
{
if (!x)
warnx("blub");
return x;
}
class A
{
protected:
A() : a(0) {}
// A() : a(1) {}
int a;
};
class B : A
{
public:
void blub()
{
WarnIfNULL(A::a);
}
};
int
main()
{
B b;
b.blub();
return 0;
}
--
Mike Small
sma...@panix.com
