Why a formalparameter object can not be treated as object reference

Clang Frontend
#1

Hi to all:
I have a test case which work well on VS2012,but i got an error when i compile it with clang++.
the test case is:
#include

class AA {
public:
AA(int i):ii(i){}
~AA(){}
public:
int ii;
};

int foo( AA& a) {
return a.ii;
}

int main() {
AA aa(1);
int rec1 = foo(aa);
int rec2 = foo(AA(1));
std::cout << rec1 << ‘\n’ << rec2 << ‘\n’;
return rec1 == rec2? 0 : 1;
}

the error is:
reference_test.cpp:18:14: error: no matching function for call to ‘foo’
int rec2 = foo(AA(1));

Is it a bug of clang or not?

#2

It's an MSVC bug.

#3

Thanks for your help,but why my test case can compile and run well on VS2012, they do not fix this bug still?
在 2012-10-31 10:54:22，"Richard Smith" <richard@metafoo.co.uk> 写道：

#4

They will never fix this bug. There is far too much code relying on it.

C++ programs generally have very poor portability between implementations,
but moving from MSVC in particular is well-known to be painful. This is
unlikely to be the only problem you're going to run into.

John.

#5

Thanks, in fact i had meet a problem caused by MSVC do allow spec,i did not realized another MSVC problem came,out of my thought.
在 2012-10-31 13:02:57，"John McCall" <rjmccall@apple.com> 写道：