Enum operator overloads not called

Question

Hi,
we are faced with a serious problem of the current Forte C++ compiler version (WS6U2 with actual patches). The following test program shows that the compiler does not accept operator overloads for enums. Instead of this all enums are implicitly converted to int.
The sample compiles and runs fine with three calls to the overloaded operator|() on other compilers such as g++. The funny thing ist that also the unpatched WS6U2 Forte C++ compiler (5.3 2001/05/15) works properly here.
So, what are the concerns of the newer compiler versions from Sun? From our point the code should be accepted by an ISO C++ compliant compiler.
$ cat test.cc
enum BitFlags { BIT0, BIT1 };
BitFlags operator|(BitFlags lhs, BitFlags rhs)
return static_cast<BitFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs));
int main(int, char**)
BitFlags a = BIT0 | BIT1; // Error
BitFlags b = BitFlags(BIT0 | BIT1); // OK, but operator|() not called
BitFlags c = ::operator|(BIT0, BIT1); // OK (explicit operator call)
return 0;
$ CC test.cc
"test.cc", line 11: Error: Cannot use int to initialize BitFlags.
1 Error(s) detected.
$ CC -V
CC: Sun WorkShop 6 update 2 C++ 5.3 Patch 111685-07 2002/04/10
Thanks in advance,
Michael v. Szombathely

Answer 1

This regression was not reproducible and works o.k. as of patch 11685-09. So, if you get the current patch 111685-14, this problem is fixed in that patch.