diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/decl.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/template/shadow3.C | 4 |
2 files changed, 7 insertions, 0 deletions
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c index 5f370e6..2de4e16 100644 --- a/gcc/cp/decl.c +++ b/gcc/cp/decl.c @@ -2002,6 +2002,9 @@ duplicate_decls (tree newdecl, tree olddecl, bool hiding, bool was_hidden) || DECL_IMPLICIT_TYPEDEF_P (newdecl))) return NULL_TREE; + if (DECL_TEMPLATE_PARM_P (olddecl) != DECL_TEMPLATE_PARM_P (newdecl)) + return NULL_TREE; + if (!validate_constexpr_redeclaration (olddecl, newdecl)) return error_mark_node; diff --git a/gcc/testsuite/g++.dg/template/shadow3.C b/gcc/testsuite/g++.dg/template/shadow3.C new file mode 100644 index 0000000..a5f2563 --- /dev/null +++ b/gcc/testsuite/g++.dg/template/shadow3.C @@ -0,0 +1,4 @@ +// PR c++/97511 +// { dg-do compile { target c++11 } } + +template <class Z> using Z = Z; // { dg-error "shadow|declaration" } |