On Wed, Feb 15, 2012 at 10:56 AM, Paul Hargrove <[email protected]> wrote:
> I strongly suspect that this is a Clang++ bug.
I don't know if it is a Clang bug, but here's my understanding of the problem.
TokenFactoryScopeC<T>::create() boils down to this:
template <class T>
uint32_t
TokenFactoryScopeC<T>::create( const void * localDef, uint32_t globalToken )
{
const T & local_def = *static_cast<const T*>(localDef);
typename std::set<T>::const_iterator it = m_globDefs->find(
local_def ); // need operator< for T
return 0;
}
When clang tries to instantiate
TokenFactoryScopeC<DefRec_BaseS>::getPackSize(), it tries to
instantiate create() too. It fails to do so because there is no
operator< defined for DefRec_BaseS.
Anyway, this looks like a bug in VT code, here's why. DefRec_* have
DefRec_*::SortS defined, but it is not used in
TokenFactoryScopeC<T>::m_globDefs. Probably it should be, something
like this:
std::set<T, typename T::SortS> * m_globDefs;
I'm not sure if this is a bug in Clang because I don't know if Clang
should have tried to instantiate create().
Dmitri
--
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <[email protected]>*/
