From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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.
---
 gcc/testsuite/g++.dg/warn/Wunused-var-3.C | 110 ++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/warn/Wunused-var-3.C

(limited to 'gcc/testsuite/g++.dg/warn/Wunused-var-3.C')

diff --git a/gcc/testsuite/g++.dg/warn/Wunused-var-3.C b/gcc/testsuite/g++.dg/warn/Wunused-var-3.C
new file mode 100644
index 000000000..cd8931d71
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wunused-var-3.C
@@ -0,0 +1,110 @@
+// { dg-options "-Wunused -W" }
+
+#include <typeinfo>
+#include <stdarg.h>
+
+void
+f1 (int a, ...)
+{
+  va_list ap;
+  va_start (ap, a);
+  va_end (ap);
+}
+
+int
+f2 (int a, ...)
+{
+  va_list ap;
+  va_start (ap, a);
+  int i = va_arg (ap, int);
+  va_end (ap);
+  return i;
+}
+
+struct A { int a; A (); virtual ~A (); };
+struct B : virtual A { int b; };
+
+struct B *
+f3 (struct A *a)
+{
+  return dynamic_cast <B *> (a);
+}
+
+struct A *
+f4 (struct B *a)
+{
+  return static_cast <A *> (a);
+}
+
+struct A *
+f5 (struct B *a)
+{
+  return reinterpret_cast <A *> (a);
+}
+
+struct A *
+f6 (const struct A *a)
+{
+  return const_cast <A *> (a);
+}
+
+int
+f7 (long a)
+{
+  return (int) a;
+}
+
+int
+f8 (long a)
+{
+  return int (a);
+}
+
+struct C
+{
+  operator unsigned int() { return 42; }
+};
+
+unsigned int
+f9 ()
+{
+  C u;
+  return u;
+}
+
+struct D
+{
+  operator int & ();
+  operator const int & () const;
+};
+
+void foo (int &);
+void foo (const int &);
+
+void
+f10 ()
+{
+  const D x = D ();
+  foo (x);
+}
+
+int
+f11 (int a)
+{
+  return typeid (a) == typeid (int);
+}
+
+struct E
+{
+  int e () {return 0;}
+};
+
+template <typename T>
+int
+f12 (E a)
+{
+  __decltype (a.e()) i;
+  return i;
+}
+
+template <> int f12<int> (E);
-- 
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