Clang template parse problem?

Clang Frontend
#1

I am having problems to compile this program using clang
and it seems a parser bug.

clang version 3.2 (trunk)
Target: i686-pc-win32
Thread model: posix

(Thanks Mello for providing a updated build for windows.)

Simplified code:

#2

I am having problems to compile this program using clang
and it seems a parser bug.

clang version 3.2 (trunk)
Target: i686-pc-win32
Thread model: posix

(Thanks Mello for providing a updated build for windows.)

Simplified code:

----------
#include <type_traits>

struct Property {};
struct Property2 : public Property {};

template<class T>
struct is_property : public std::is_base_of<Property, T> {};

template <class TA, class TB>
auto operator > (const TA& a, const TB& b)
-> typename std::enable_if < is_property<TA>::value ||
is_property<TB>::value,
           decltype(eval(a) > eval(b)) >::type
{
   return true;
}

int main()
{
   Property2 a;
   Property2 b;
   if (a > b)
     return 1;
   return 0;
}

----------

error: expected ')'
decltype(eval(a) > eval(b)) >::type

^ points to ">"

-----------

Is it a bug?

Yes, it's a Clang bug. Thanks!

I am new to clang. Where do I report this problem?

Bug reports for Clang and LLVM should go here:

  http://llvm.org/bugs/

But, don't bother for this bug, because I went ahead and fixed this already in Clang r158111.

The workaround is to change:

decltype(eval(a) > eval(b))

Wrapping eval(a) > eval(b) in another set of parentheses should work, too.

  - Doug