Re: Temporaries
Prasoon wrote:
Are all temporaries in C++ "rvalues"?
No.
According to me "yes".
Am I right?
What do you think?
However consider the following code.
#include <iostream>
int a;
int& foo()
{
return a;
}
int main()
{
foo()=6;
}
Is there any temporary created in the above code?
Not really. I wanted to say "yes, for the '6'", but since 'int' is not
a class, even semantically there is no copy-assignment operator that
*might* require creation of a temporary...
According to me "no" there isn't any.
foo() returns just a reference to "a" (and no temporary created).
Correct me if I am wrong.
You need to do that when the return value of 'foo' is a class which can
be initialised from an int. There will be a temporary created so a
reference can be bound to it when that reference is passed to the
copy-assignment operator.
V
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