When compile trysto expand:
: seq
< integral_c
< Integral
, Vals
>...
the error diagnostic prints integral_c<T, val> instead of
integral_c<Integral,Vals>. The integral_constant template
is derived from integral_c and does have T and val args:
struct integral_constant:public mpl::integral_c < T, val >
However, when that is replaced with:
struct integral_constant;//:public mpl::integral_c < T, val >
Compilation succeeds.
--
Summary: -std=gnu++0x expansion pattern fails with error about
derived template instead of actual template
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: cppljevans at suddenlink dot net
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40092
