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, 152 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/ext/has_nothrow_assign.C b/gcc/testsuite/g++.dg/ext/has_nothrow_assign.C
new file mode 100644
index 000000000..e6e9fc6ed
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/has_nothrow_assign.C
@@ -0,0 +1,152 @@
+// { dg-do run }
+#include <cassert>
+
+struct A
+{
+  double a;
+  double b;
+};
+
+struct B
+{
+  A a;
+};
+
+struct C
+: public A { };
+
+struct D
+{
+  D& operator=(const D&) throw() { return *this; }
+};
+
+struct E
+{
+  E& operator=(const E&) throw(int) { return *this; }
+};
+
+struct E1
+{
+  E1& operator=(const E1&) throw(int) { throw int(); return *this; }
+};
+
+struct F
+{
+  F() throw(int) { }
+};
+
+struct G
+{
+  G() throw(int) { throw int(); }
+};
+
+struct H
+{
+  H& operator=(H&) throw(int) { return *this; }
+};
+
+struct H1
+{
+  H1& operator=(H1&) throw(int) { throw int(); return *this; }
+};
+
+struct I
+{
+  I& operator=(I&) throw(int) { return *this; }
+  I& operator=(const I&) throw() { return *this; }
+};
+
+struct I1
+{
+  I1& operator=(I1&) throw(int) { throw int(); return *this; }
+  I1& operator=(const I1&) throw() { return *this; }
+};
+
+struct J
+{
+  J& operator=(J&) throw() { return *this; }
+  J& operator=(const J&) throw() { return *this; }
+  J& operator=(volatile J&) throw() { return *this; }
+  J& operator=(const volatile J&) throw() { return *this; }
+};
+
+struct K
+{
+  K& operator=(K&) throw() { return *this; }
+};
+
+struct L
+{
+  L& operator=(const L&) throw() { return *this; }
+};
+
+template<typename T>
+  bool
+  f()
+  { return __has_nothrow_assign(T); } 
+
+template<typename T>
+  class My
+  {
+  public:
+    bool
+    f()
+    { return !!__has_nothrow_assign(T); }
+  };
+
+template<typename T>
+  class My2
+  {
+  public:
+    static const bool trait = __has_nothrow_assign(T);
+  };
+
+template<typename T>
+  const bool My2<T>::trait;
+
+template<typename T, bool b = __has_nothrow_assign(T)>
+  struct My3_help
+  { static const bool trait = b; };
+
+template<typename T, bool b>
+  const bool My3_help<T, b>::trait;
+
+template<typename T>
+  class My3
+  {
+  public:
+    bool
+    f()
+    { return My3_help<T>::trait; }
+  };
+
+#define PTEST(T) (__has_nothrow_assign(T) && f<T>() \
+                  && My<T>().f() && My2<T>::trait && My3<T>().f())
+
+#define NTEST(T) (!__has_nothrow_assign(T) && !f<T>() \
+                  && !My<T>().f() && !My2<T>::trait && !My3<T>().f())
+
+int main()
+{
+  assert (PTEST (int));
+  assert (NTEST (int (int)));
+  assert (NTEST (void));
+  assert (PTEST (A));
+  assert (PTEST (B));
+  assert (PTEST (C));
+  assert (PTEST (C[]));
+  assert (PTEST (D));
+  assert (NTEST (E));
+  assert (NTEST (E1));
+  assert (PTEST (F));
+  assert (PTEST (G));
+  assert (NTEST (H));
+  assert (NTEST (H1));
+  assert (NTEST (I));
+  assert (NTEST (I1));
+  assert (PTEST (J));
+  assert (NTEST (const K));
+  assert (NTEST (const L));
+
+  return 0;
+}