obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 47 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic20.C b/gcc/testsuite/g++.dg/cpp0x/variadic20.C
new file mode 100644
index 000000000..7f2446e55
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/variadic20.C
@@ -0,0 +1,47 @@
+// { dg-options "-std=gnu++0x" }
+template<typename T> struct add_pointer;
+template<typename T> struct add_reference;
+
+template<template<class T> class... Metafunctions>
+struct metatuple {
+  static const int value = 0;
+};
+
+template<>
+struct metatuple<add_pointer> {
+  static const int value = 1;
+};
+
+template<template<class T> class Meta>
+struct metatuple<Meta, Meta> { // { dg-error "candidates" }
+  static const int value = 2;
+};
+
+template<template<class T> class... Metafunctions>
+struct metatuple<add_pointer, Metafunctions...> { // { dg-error "" }
+  static const int value = 3;
+};
+
+template<template<class T> class First,
+         template<class T> class... Metafunctions>
+struct metatuple<First, Metafunctions...> { // { dg-error "struct" }
+  static const int value = 4;
+};
+
+template<template<class T> class First,
+         template<class T> class Second,
+         template<class T> class... Metafunctions>
+struct metatuple<First, Second, Metafunctions...> { // { dg-error "struct" }
+  static const int value = 5;
+};
+
+int a0[metatuple<>::value == 0? 1 : -1];
+int a1[metatuple<add_pointer>::value == 1? 1 : -1];
+int a2a[metatuple<add_pointer, add_pointer>::value == 2? 1 : -1]; // { dg-error "ambiguous|array bound" }
+int a2b[metatuple<add_reference, add_reference>::value == 2? 1 : -1];
+int a3[metatuple<add_pointer, add_reference>::value == 3? 1 : -1]; // { dg-error "ambiguous|array bound" }
+int a4[metatuple<add_reference>::value == 4? 1 : -1];
+int a5[metatuple<add_reference, add_pointer>::value == 5? 1 : -1];
+
+// { dg-error "incomplete" "" { target *-*-* } 40 }
+// { dg-error "incomplete" "" { target *-*-* } 42 }