In the following SFINAE scenario involving vararg templates an non-type
template parameters, the compiler ICEs instead of ignoring the specialization.
Latest SVN g++ with patches from Doug Gregor for vararg templates.
template<typename T>
struct foo
{
static bool const value = false;
};
template<template<typename...> class T, typename... Args>
struct foo<T<Args...> >
{
static bool const value = false;
};
template<int I>
struct int_
{};
int main()
{
foo<int_<0> > f; // ICE
}
--
Summary: internal compiler error: tree check: expected class
'type', have 'constant' (integer_cst) in cp_type_quals,
at cp/typeck.c:6955 (vararg templates)
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: eric dot niebler at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33965
