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
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1 files changed, 372 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/cpp0x/rv6n.C b/gcc/testsuite/g++.dg/cpp0x/rv6n.C
new file mode 100644
index 000000000..d0fdbb7e5
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/rv6n.C
@@ -0,0 +1,372 @@
+// I, Howard Hinnant, hereby place this code in the public domain.
+
+// Test overload resolution among reference types
+
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+
+template <bool> struct sa;
+template <> struct sa<true> {};
+
+struct one   {char x[1];};
+struct two   {char x[2];};
+struct three {char x[3];};
+struct four  {char x[4];};
+struct five  {char x[5];};
+struct six   {char x[6];};
+struct seven {char x[7];};
+struct eight {char x[8];};
+
+struct A
+{
+    A();
+    A(const volatile A&&);	// { dg-error "argument 1" }
+};
+
+               A    source();
+const          A  c_source();
+      volatile A  v_source();
+const volatile A cv_source();
+
+// 6 at a time
+
+one   sink_6_123456(               A&);  // { dg-message "one sink_6_123456|no known conversion" }
+two   sink_6_123456(const          A&);  // { dg-message "note" }
+three sink_6_123456(volatile       A&);  // { dg-message "note" }
+four  sink_6_123456(const volatile A&);  // { dg-message "note" }
+five  sink_6_123456(               A&&);  // { dg-message "note" }
+six   sink_6_123456(const          A&&);  // { dg-message "note" }
+
+int test6_123456()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_123456(v_source());   // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 46 }
+    sink_6_123456(cv_source());  // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 48 }
+    return 0;
+}
+
+one   sink_6_123457(               A&);  // { dg-message "one sink_6_123457|no known conversion" }
+two   sink_6_123457(const          A&);  // { dg-message "note" }
+three sink_6_123457(volatile       A&);  // { dg-message "note" }
+four  sink_6_123457(const volatile A&);  // { dg-message "note" }
+five  sink_6_123457(               A&&);  // { dg-message "note" }
+seven sink_6_123457(volatile       A&&);  // { dg-message "note" }
+
+int test6_123457()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_123457(cv_source());  // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 66 }
+    return 0;
+}
+
+two   sink_6_235678(const          A&);  // { dg-message "note" }
+three sink_6_235678(volatile       A&);  // { dg-message "note" }
+five  sink_6_235678(               A&&);  // { dg-message "note" }
+six   sink_6_235678(const          A&&);  // { dg-message "note" }
+seven sink_6_235678(volatile       A&&);  // { dg-message "note" }
+eight sink_6_235678(const volatile A&&);  // { dg-message "" }
+
+int test6_235678()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_235678(a);  // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 84 }
+    sink_6_235678(cva);		// { dg-error "lvalue" }
+    return 0;
+}
+
+two   sink_6_234678(const          A&);  // { dg-message "note" }
+three sink_6_234678(volatile       A&);  // { dg-message "note" }
+four  sink_6_234678(const volatile A&);  // { dg-message "note" }
+six   sink_6_234678(const          A&&);  // { dg-message "note" }
+seven sink_6_234678(volatile       A&&);  // { dg-message "note" }
+eight sink_6_234678(const volatile A&&);  // { dg-message "note" }
+
+int test6_234678()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_234678(a);         // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 103 }
+    sink_6_234678(source());  // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 105 }
+    return 0;
+}
+
+two   sink_6_234578(const          A&);  // { dg-message "note" }
+three sink_6_234578(volatile       A&);  // { dg-message "note" }
+four  sink_6_234578(const volatile A&);  // { dg-message "note" }
+five  sink_6_234578(               A&&);  // { dg-message "note" }
+seven sink_6_234578(volatile       A&&);  // { dg-message "note" }
+eight sink_6_234578(const volatile A&&);  // { dg-message "note" }
+
+int test6_234578()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_234578(a);  // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 123 }
+    return 0;
+}
+
+two   sink_6_234568(const          A&);  // { dg-message "note" }
+three sink_6_234568(volatile       A&);  // { dg-message "note" }
+four  sink_6_234568(const volatile A&);  // { dg-message "note" }
+five  sink_6_234568(               A&&);  // { dg-message "note" }
+six   sink_6_234568(const          A&&);  // { dg-message "note" }
+eight sink_6_234568(const volatile A&&);  // { dg-message "note" }
+
+int test6_234568()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_234568(a);  // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 141 }
+    return 0;
+}
+
+two   sink_6_234567(const          A&);  // { dg-message "two sink_6_234567|no known conversion" }
+three sink_6_234567(volatile       A&);  // { dg-message "note" }
+four  sink_6_234567(const volatile A&);  // { dg-message "note" }
+five  sink_6_234567(               A&&);  // { dg-message "note" }
+six   sink_6_234567(const          A&&);  // { dg-message "note" }
+seven sink_6_234567(volatile       A&&);  // { dg-message "note" }
+
+int test6_234567()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_234567(a);            // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 159 }
+    sink_6_234567(cv_source());  // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 161 }
+    return 0;
+}
+
+one   sink_6_134678(               A&);
+three sink_6_134678(volatile       A&);
+four  sink_6_134678(const volatile A&);
+six   sink_6_134678(const          A&&);  // { dg-message "note" }
+seven sink_6_134678(volatile       A&&);  // { dg-message "note" }
+eight sink_6_134678(const volatile A&&);  // { dg-message "note" }
+
+int test6_134678()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_134678(source());  // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 179 }
+    return 0;
+}
+
+one   sink_6_124678(               A&);
+two   sink_6_124678(const          A&);  // { dg-message "note" }
+four  sink_6_124678(const volatile A&);
+six   sink_6_124678(const          A&&);  // { dg-message "note" }
+seven sink_6_124678(volatile       A&&);  // { dg-message "note" }
+eight sink_6_124678(const volatile A&&);  // { dg-message "note" }
+
+int test6_124678()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_124678(source());  // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 197 }
+    return 0;
+}
+
+one   sink_6_123678(               A&);
+two   sink_6_123678(const          A&);  // { dg-message "note" }
+three sink_6_123678(volatile       A&);
+six   sink_6_123678(const          A&&);  // { dg-message "note" }
+seven sink_6_123678(volatile       A&&);  // { dg-message "note" }
+eight sink_6_123678(const volatile A&&);  // { dg-message "" }
+
+int test6_123678()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_123678(cva);		// { dg-error "lvalue" }
+    sink_6_123678(source());  // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 216 }
+    return 0;
+}
+
+one   sink_6_123567(               A&);  // { dg-message "one sink_6_123567|no known conversion" }
+two   sink_6_123567(const          A&);  // { dg-message "note" }
+three sink_6_123567(volatile       A&);  // { dg-message "note" }
+five  sink_6_123567(               A&&);  // { dg-message "note" }
+six   sink_6_123567(const          A&&);  // { dg-message "note" }
+seven sink_6_123567(volatile       A&&);  // { dg-message "note" }
+
+int test6_123567()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_123567(cva);          // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 234 }
+    sink_6_123567(cv_source());  // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 236 }
+    return 0;
+}
+
+one   sink_6_123568(               A&);
+two   sink_6_123568(const          A&);
+three sink_6_123568(volatile       A&);
+five  sink_6_123568(               A&&);
+six   sink_6_123568(const          A&&);
+eight sink_6_123568(const volatile A&&); // { dg-message "" }
+
+int test6_123568()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_123568(cva); // { dg-error "lvalue" }
+    return 0;
+}
+
+one   sink_6_123578(               A&);
+two   sink_6_123578(const          A&);
+three sink_6_123578(volatile       A&);
+five  sink_6_123578(               A&&);
+seven sink_6_123578(volatile       A&&);
+eight sink_6_123578(const volatile A&&); // { dg-message "" }
+
+int test6_123578()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_123578(cva);		// { dg-error "lvalue" }
+    return 0;
+}
+
+one   sink_6_123467(               A&);  // { dg-message "one sink_6_123467|no known conversion" }
+two   sink_6_123467(const          A&);  // { dg-message "note" }
+three sink_6_123467(volatile       A&);  // { dg-message "note" }
+four  sink_6_123467(const volatile A&);  // { dg-message "note" }
+six   sink_6_123467(const          A&&);  // { dg-message "note" }
+seven sink_6_123467(volatile       A&&);  // { dg-message "note" }
+
+int test6_123467()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_123467(source());     // { dg-error "ambiguous" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 288 }
+    sink_6_123467(cv_source());  // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 290 }
+    return 0;
+}
+
+one   sink_6_124567(               A&);  // { dg-message "one sink_6_124567|no known conversion" }
+two   sink_6_124567(const          A&);  // { dg-message "note" }
+four  sink_6_124567(const volatile A&);  // { dg-message "note" }
+five  sink_6_124567(               A&&);  // { dg-message "note" }
+six   sink_6_124567(const          A&&);  // { dg-message "note" }
+seven sink_6_124567(volatile       A&&);  // { dg-message "note" }
+
+int test6_124567()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_124567(cv_source());  // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 308 }
+    return 0;
+}
+
+one   sink_6_125678(               A&);
+two   sink_6_125678(const          A&);
+five  sink_6_125678(               A&&);
+six   sink_6_125678(const          A&&);
+seven sink_6_125678(volatile       A&&); // { dg-message "" }
+eight sink_6_125678(const volatile A&&); // { dg-message "" }
+
+int test6_125678()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_125678(va);		// { dg-error "lvalue" }
+    sink_6_125678(cva);		// { dg-error "lvalue" }
+    return 0;
+}
+
+one   sink_6_134567(               A&);  // { dg-message "one sink_6_134567|no known conversion" }
+three sink_6_134567(volatile       A&);  // { dg-message "note" }
+four  sink_6_134567(const volatile A&);  // { dg-message "note" }
+five  sink_6_134567(               A&&);  // { dg-message "note" }
+six   sink_6_134567(const          A&&);  // { dg-message "note" }
+seven sink_6_134567(volatile       A&&);  // { dg-message "note" }
+
+int test6_134567()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_134567(cv_source());  // { dg-error "no match" }
+    // { dg-message "candidate" "candidate note" { target *-*-* } 344 }
+    return 0;
+}
+
+one   sink_6_135678(               A&);
+three sink_6_135678(volatile       A&);
+five  sink_6_135678(               A&&);
+six   sink_6_135678(const          A&&); // { dg-message "" }
+seven sink_6_135678(volatile       A&&);
+eight sink_6_135678(const volatile A&&); // { dg-message "" }
+
+int test6_135678()
+{
+                   A a;
+    const          A ca = a; // { dg-error "lvalue" }
+          volatile A va;
+    const volatile A cva = a; // { dg-error "lvalue" }
+    sink_6_135678(ca);		// { dg-error "lvalue" }
+    sink_6_135678(cva);		// { dg-error "lvalue" }
+    return 0;
+}
+
+int main()
+{
+    return test6_235678() + test6_234678() + test6_234578() + test6_234568() +
+           test6_234567() + test6_134678() + test6_124678() + test6_123678() +
+           test6_123567();
+}