1 files changed, 106 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/has_nothrow_constructor.C b/gcc/testsuite/g++.dg/ext/has_nothrow_constructor.C
new file mode 100644
index 000000000..1f1227c30
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/has_nothrow_constructor.C
@@ -0,0 +1,106 @@
+// { dg-do run }
+#include <cassert>
+
+struct A
+{
+  double a;
+  double b;
+};
+
+struct B
+{
+  A a;
+};
+
+struct C 
+: public A { };
+
+struct D
+{
+  D() throw() { }
+};
+
+struct E
+{
+  E() throw(int) { }
+};
+
+struct E1
+{
+  E1() throw(int) { throw int(); }
+};
+
+struct F
+{
+  F(const F&) throw() { }
+};
+
+struct G
+{
+  G(const G&) throw(int) { throw int(); }
+};
+
+template<typename T>
+  bool
+  f()
+  { return __has_nothrow_constructor(T); } 
+
+template<typename T>
+  class My
+  {
+  public:
+    bool
+    f()
+    { return !!__has_nothrow_constructor(T); }
+  };
+
+template<typename T>
+  class My2
+  {
+  public:
+    static const bool trait = __has_nothrow_constructor(T);
+  };
+
+template<typename T>
+  const bool My2<T>::trait;
+
+
+template<typename T, bool b = __has_nothrow_constructor(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_constructor(T) && f<T>() \
+                  && My<T>().f() && My2<T>::trait && My3<T>().f())
+
+#define NTEST(T) (!__has_nothrow_constructor(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 (NTEST (F));
+  assert (NTEST (G));
+
+  return 0;
+}