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-rw-r--r--meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0332-PR-c-48292.patch71
1 files changed, 71 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0332-PR-c-48292.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0332-PR-c-48292.patch
new file mode 100644
index 0000000000..9bc5588324
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0332-PR-c-48292.patch
@@ -0,0 +1,71 @@
1From 8b1d0e0f8d8667c8f71aa00080108115d6891354 Mon Sep 17 00:00:00 2001
2From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
3Date: Wed, 25 May 2011 15:26:14 +0000
4Subject: [PATCH] PR c++/48292
5 * pt.c (tsubst_decl) [PARM_DECL]: Handle partial instantiation of
6 function parameter pack.
7 (tsubst_pack_expansion): Likewise.
8
9git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174207 138bc75d-0d04-0410-961f-82ee72b054a4
10
11index b16d229..d379a8c 100644
12--- a/gcc/cp/pt.c
13+++ b/gcc/cp/pt.c
14@@ -8690,7 +8690,12 @@ tsubst_pack_expansion (tree t, tree args, tsubst_flags_t complain,
15 have the wrong value for a recursive call. Just make a
16 dummy decl, since it's only used for its type. */
17 arg_pack = tsubst_decl (parm_pack, args, complain);
18- arg_pack = make_fnparm_pack (arg_pack);
19+ if (arg_pack && FUNCTION_PARAMETER_PACK_P (arg_pack))
20+ /* Partial instantiation of the parm_pack, we can't build
21+ up an argument pack yet. */
22+ arg_pack = NULL_TREE;
23+ else
24+ arg_pack = make_fnparm_pack (arg_pack);
25 }
26 }
27 else
28@@ -9780,14 +9785,14 @@ tsubst_decl (tree t, tree args, tsubst_flags_t complain)
29 if (DECL_TEMPLATE_PARM_P (t))
30 SET_DECL_TEMPLATE_PARM_P (r);
31
32- /* An argument of a function parameter pack is not a parameter
33- pack. */
34- FUNCTION_PARAMETER_PACK_P (r) = false;
35-
36 if (expanded_types)
37 /* We're on the Ith parameter of the function parameter
38 pack. */
39 {
40+ /* An argument of a function parameter pack is not a parameter
41+ pack. */
42+ FUNCTION_PARAMETER_PACK_P (r) = false;
43+
44 /* Get the Ith type. */
45 type = TREE_VEC_ELT (expanded_types, i);
46
47new file mode 100644
48index 0000000..0ec69af
49--- /dev/null
50+++ b/gcc/testsuite/g++.dg/cpp0x/variadic109.C
51@@ -0,0 +1,17 @@
52+// PR c++/48292
53+// { dg-options -std=c++0x }
54+
55+template <typename... Args> int g(Args...);
56+
57+template <int N = 0>
58+struct A
59+{
60+ template <typename... Args>
61+ static auto f(Args... args) -> decltype(g(args...));
62+};
63+
64+int main()
65+{
66+ A<>::f();
67+ return 0;
68+}
69--
701.7.0.4
71