On 06/21/2011 09:19 AM, Jiri Krutil wrote:
Hi
In the C++ client, things like Receiver appear to be handles with
pointer semantics.
Can one compare two handles for equality to find out if they both refer
to the same implementation object?
Even if neither class Receiver nor class Handle implement operator==,
the following code surprisingly complies:
qpid::messaging::Receiver r1;
qpid::messaging::Receiver r2;
..
bool equal = (r1 == r2);
How come this compiles and what does it do?
I believe that is due to the conversion to bool defined for Handle.
At present two handles are equal if either they are both null or if they
are both non-null. The only time they are not equal is if one is null
and the other is not.
It would probably make sense to define a slightly more intuitive
equality operator.
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