diff options
| author | jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-06-28 19:59:44 +0000 |
|---|---|---|
| committer | jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-06-28 19:59:44 +0000 |
| commit | 51629b8516eaff3fe10a2ecb60c348d6219e36cc (patch) | |
| tree | 263323a24ffaba8b5d234cfc2f92f277a43f7232 | |
| parent | 34e400324df70d06d5489fd9c638653087c02ec8 (diff) | |
PR c++/61022 - error with variadic template template parm
* pt.c (convert_template_argument): Keep the TYPE_PACK_EXPANSION.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@249756 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/cp/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/cp/pt.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/cpp0x/variadic-ttp8.C | 27 |
3 files changed, 31 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index ae6de7f009c..9c21f6f363e 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,8 @@ 2017-06-28 Jason Merrill <jason@redhat.com> + PR c++/61022 - error with variadic template template parm + * pt.c (convert_template_argument): Keep the TYPE_PACK_EXPANSION. + PR c++/72801 - ICE with variadic partial specialization * pt.c (unify_pack_expansion): Use PACK_EXPANSION_EXTRA_ARGS. diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c index b86b346164d..fa75037aa3d 100644 --- a/gcc/cp/pt.c +++ b/gcc/cp/pt.c @@ -7695,7 +7695,7 @@ convert_template_argument (tree parm, if (TREE_CODE (TREE_TYPE (arg)) == UNBOUND_CLASS_TEMPLATE) /* The number of argument required is not known yet. Just accept it for now. */ - val = TREE_TYPE (arg); + val = orig_arg; else { tree parmparm = DECL_INNERMOST_TEMPLATE_PARMS (parm); diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic-ttp8.C b/gcc/testsuite/g++.dg/cpp0x/variadic-ttp8.C new file mode 100644 index 00000000000..f3e576ae988 --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/variadic-ttp8.C @@ -0,0 +1,27 @@ +// PR c++/69111 +// { dg-do compile { target c++11 } } + +template <template <typename> class ...> +struct template_list {}; + +template <typename T> +struct A +{}; + +template <typename> +struct B +{ + template <typename T> + using type = A<T>; +}; + +template <typename ... Types> +struct C +{ + using type = template_list<B<Types>::template type...>; +}; + +int main() +{ + return 0; +} |