https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77656
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-09-20
CC| |jakub at gcc dot gnu.org,
| |jason at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
template<unsigned long long N, int O = (N >> (sizeof(int) * __CHAR_BIT__))>
class A {};
template<unsigned int T> class B : A<T> {};
template<unsigned int T> class C : A<(unsigned long long) T> {};
Perhaps tsubst of TEMPLATE_PARM_INDEX instead of just
return convert_from_reference (unshare_expr (arg));
also convert it to the TEMPLATE_PARM_INDEX's type (if it is integral type only,
or when?)?
Also, is e.g.
template<unsigned short N> class A {};
A<0xffffU> a;
A<0x1ffffU> b;
valid C++11 (0x1ffffU is too large to fit into unsigned short)? clang++
accepts it in C++98 and rejects with narrowing conversion error in -std=c++11
and later, g++ only warns:
warning: large integer implicitly truncated to unsigned type [-Woverflow]
