re PR libstdc++/22203 (std::numeric_limits<int>::traps is wrong on PPC)

2005-11-09  Benjamin Kosnik  <bkoz@redhat.com>
	    Paolo Carlini  <pcarlini@suse.de>
            Gabriel Dos Reis  <gdr@integrable-solutions.net>

	PR libstdc++/22203
	* numeric_limits.cc: Split into...
	* numeric_limits/specialization.cc: ..this.
	* numeric_limits/is_iec559.cc: Same.
	* numeric_limits/sign.cc: Same.
	* numeric_limits/quiet_NaN.cc: Same.
	* numeric_limits/digits10.cc: Same.
	* numeric_limits/denorm_min.cc: Same.
	* numeric_limits/min_max.cc: Same.
	* numeric_limits/epsilon.cc: Same.
	* numeric_limits/infinity.cc: Same.
	* numeric_limits/traps.cc: New.


Co-Authored-By: Gabriel Dos Reis <gdr@integrable-solutions.net>
Co-Authored-By: Paolo Carlini <pcarlini@suse.de>

From-SVN: r106727

12 files changed, 706 insertions, 350 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 60bcb20..da33a22 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,20 @@
+2005-11-09  Benjamin Kosnik  <bkoz@redhat.com>
+	    Paolo Carlini  <pcarlini@suse.de>
+            Gabriel Dos Reis  <gdr@integrable-solutions.net>
+
+	PR libstdc++/22203
+	* numeric_limits.cc: Split into...
+	* numeric_limits/specialization.cc: ..this.
+	* numeric_limits/is_iec559.cc: Same.
+	* numeric_limits/sign.cc: Same.
+	* numeric_limits/quiet_NaN.cc: Same.
+	* numeric_limits/digits10.cc: Same.
+	* numeric_limits/denorm_min.cc: Same.
+	* numeric_limits/min_max.cc: Same.
+	* numeric_limits/epsilon.cc: Same.
+	* numeric_limits/infinity.cc: Same.
+	* numeric_limits/traps.cc: New.
+
 2005-11-09  Paolo Carlini  <pcarlini@suse.de>
 
 	* include/tr1/boost_shared_ptr.h: Trivial formatting fixes.
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits.cc b/libstdc++-v3/testsuite/18_support/numeric_limits.cc
deleted file mode 100644
index f04f05f..0000000
--- a/libstdc++-v3/testsuite/18_support/numeric_limits.cc
+++ /dev/null
@@ -1,350 +0,0 @@
-// { dg-options "-mieee" { target alpha*-*-* } }
-// { dg-options "-mieee" { target sh*-*-* } }
-
-// 1999-08-23 bkoz
-
-// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
-//
-// This file is part of the GNU ISO C++ Library.  This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 2, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING.  If not, write to the Free
-// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-// USA.
-
-// 18.2.1.1 template class numeric_limits
-
-#include <limits>
-#include <limits.h>
-#include <float.h>
-#include <cwchar>
-#include <testsuite_hooks.h>
-
-template<typename T>
-struct extrema {
-  static T min;
-  static T max;
-};
-
-
-#define DEFINE_EXTREMA(T, m, M) \
-  template<> T extrema<T>::min = m; \
-  template<> T extrema<T>::max = M
-
-DEFINE_EXTREMA(char, CHAR_MIN, CHAR_MAX);
-DEFINE_EXTREMA(signed char, SCHAR_MIN, SCHAR_MAX);
-DEFINE_EXTREMA(unsigned char, 0, UCHAR_MAX);
-DEFINE_EXTREMA(short, SHRT_MIN, SHRT_MAX);
-DEFINE_EXTREMA(unsigned short, 0, USHRT_MAX);
-DEFINE_EXTREMA(int, INT_MIN, INT_MAX);
-DEFINE_EXTREMA(unsigned, 0U, UINT_MAX);
-DEFINE_EXTREMA(long, LONG_MIN, LONG_MAX);
-DEFINE_EXTREMA(unsigned long, 0UL, ULONG_MAX);
-
-#if _GLIBCXX_USE_WCHAR_T
-DEFINE_EXTREMA(wchar_t, WCHAR_MIN, WCHAR_MAX);
-#endif //_GLIBCXX_USE_WCHAR_T
-
-DEFINE_EXTREMA(float, FLT_MIN, FLT_MAX);
-DEFINE_EXTREMA(double, DBL_MIN, DBL_MAX);
-DEFINE_EXTREMA(long double, LDBL_MIN, LDBL_MAX);
-
-#undef DEFINE_EXTREMA
-
-template<typename T>
-void test_extrema()
-{
-  bool test __attribute__((unused)) = true;
-  T limits_min = std::numeric_limits<T>::min();
-  T limits_max = std::numeric_limits<T>::max();
-  T extrema_min = extrema<T>::min;
-  T extrema_max = extrema<T>::max;
-  VERIFY( extrema_min == limits_min );
-  VERIFY( extrema_max == limits_max );
-}
-
-template<typename T>
-void test_epsilon()
-{
-  bool test __attribute__((unused)) = true;
-  T epsilon = std::numeric_limits<T>::epsilon();
-  T one = 1;
-
-  VERIFY( one != (one + epsilon) );
-}
-
-#ifdef __CHAR_UNSIGNED__
-#define char_is_signed false
-#else
-#define char_is_signed true
-#endif
-
-void test_sign()
-{
-  bool test __attribute__((unused)) = true;
-  VERIFY( std::numeric_limits<char>::is_signed == char_is_signed );
-  VERIFY( std::numeric_limits<signed char>::is_signed == true );
-  VERIFY( std::numeric_limits<unsigned char>::is_signed == false );
-  VERIFY( std::numeric_limits<short>::is_signed == true );
-  VERIFY( std::numeric_limits<unsigned short>::is_signed == false );
-  VERIFY( std::numeric_limits<int>::is_signed == true );
-  VERIFY( std::numeric_limits<unsigned>::is_signed == false );
-  VERIFY( std::numeric_limits<long>::is_signed == true );
-  VERIFY( std::numeric_limits<unsigned long>::is_signed == false );
-  VERIFY( std::numeric_limits<float>::is_signed == true );
-  VERIFY( std::numeric_limits<double>::is_signed == true );
-  VERIFY( std::numeric_limits<long double>::is_signed == true );
-}
-
-
-template<typename T>
-void
-test_infinity()
-{
-  bool test;
-
-  if (std::numeric_limits<T>::has_infinity)
-    {
-      T inf = std::numeric_limits<T>::infinity();
-      test = (inf + inf == inf);
-    }
-  else
-    test = true;
-
-  VERIFY (test);
-}
-
-template<typename T>
-void
-test_denorm_min()
-{
-  bool test;
-
-  if (std::numeric_limits<T>::has_denorm == std::denorm_present)
-    {
-      T denorm = std::numeric_limits<T>::denorm_min();
-      test = (denorm > 0);
-    }
-  else
-    test = true;
-
-  VERIFY (test);
-}
-
-template<typename T>
-void
-test_qnan()
-{
-  bool test;
-
-  if (std::numeric_limits<T>::has_quiet_NaN)
-    {
-      T nan = std::numeric_limits<T>::quiet_NaN();
-      test = (nan != nan);
-    }
-  else
-    test = true;
-
-  VERIFY (test);
-}
-
-
-template<typename T>
-void
-test_is_iec559()
-{
-  bool test;
-
-  if (std::numeric_limits<T>::is_iec559)
-    {
-      // IEC 559 requires all of the following.
-      test = (std::numeric_limits<T>::has_infinity
-	      && std::numeric_limits<T>::has_quiet_NaN
-	      && std::numeric_limits<T>::has_signaling_NaN);
-    }
-  else
-    {
-      // If we had all of the following, why didn't we set IEC 559?
-      test = (!std::numeric_limits<T>::has_infinity
-	      || !std::numeric_limits<T>::has_quiet_NaN
-	      || !std::numeric_limits<T>::has_signaling_NaN);
-    }
-
-  VERIFY (test);
-}
-
-
-template<typename T>
-  struct A 
-  {
-    int key;
-  public:
-    A(int i = 0): key(i) { }
-    bool
-    operator==(int i) { return i == key; }
-  };
-
-struct B 
-{
-  B(int i = 0) { }
-};
-
-
-bool test01()
-{
-  bool test __attribute__((unused)) = true;
-  std::numeric_limits< A<B> > obj;
-
-  VERIFY( !obj.is_specialized );
-  VERIFY( obj.min() == 0 );
-  VERIFY( obj.max() == 0 );
-  VERIFY( obj.digits ==  0 );
-  VERIFY( obj.digits10 == 0 );
-  VERIFY( !obj.is_signed );
-  VERIFY( !obj.is_integer );
-  VERIFY( !obj.is_exact );
-  VERIFY( obj.radix == 0 );
-  VERIFY( obj.epsilon() == 0 );
-  VERIFY( obj.round_error() == 0 );
-  VERIFY( obj.min_exponent == 0 );
-  VERIFY( obj.min_exponent10 == 0 );
-  VERIFY( obj.max_exponent == 0 );
-  VERIFY( obj.max_exponent10 == 0 );
-  VERIFY( !obj.has_infinity );
-  VERIFY( !obj.has_quiet_NaN );
-  VERIFY( !obj.has_signaling_NaN );
-  VERIFY( !obj.has_denorm );
-  VERIFY( !obj.has_denorm_loss );
-  VERIFY( obj.infinity() == 0 );
-  VERIFY( obj.quiet_NaN() == 0 );
-  VERIFY( obj.signaling_NaN() == 0 );
-  VERIFY( obj.denorm_min() == 0 );
-  VERIFY( !obj.is_iec559 );
-  VERIFY( !obj.is_bounded );
-  VERIFY( !obj.is_modulo );
-  VERIFY( !obj.traps );
-  VERIFY( !obj.tinyness_before );
-  VERIFY( obj.round_style == std::round_toward_zero );
-  return test;
-}
-
-// test linkage of the generic bits
-template struct std::numeric_limits<B>;
-
-void test02()
-{
-  typedef std::numeric_limits<B> b_nl_type;
-  
-  // Should probably do all of them...
-  const int* __attribute__((unused)) pi1 = &b_nl_type::digits;
-  const int* __attribute__((unused)) pi2 = &b_nl_type::digits10;
-  const int* __attribute__((unused)) pi3 = &b_nl_type::max_exponent10;
-  const bool* __attribute__((unused)) pb1 = &b_nl_type::traps;
-}
-
-// libstdc++/5045
-bool test03()
-{
-  bool test __attribute__((unused)) = true;
-
-  VERIFY( std::numeric_limits<bool>::digits10 == 0 );
-  if (__CHAR_BIT__ == 8)
-    {
-      VERIFY( std::numeric_limits<signed char>::digits10 == 2 );
-      VERIFY( std::numeric_limits<unsigned char>::digits10 == 2 );
-    }
-  if (__CHAR_BIT__ * sizeof(short) == 16)
-    {
-      VERIFY( std::numeric_limits<signed short>::digits10 == 4 );
-      VERIFY( std::numeric_limits<unsigned short>::digits10 == 4 );
-    }
-  if (__CHAR_BIT__ * sizeof(int) == 32)
-    {
-      VERIFY( std::numeric_limits<signed int>::digits10 == 9 );
-      VERIFY( std::numeric_limits<unsigned int>::digits10 == 9 );
-    }
-  if (__CHAR_BIT__ * sizeof(long long) == 64)
-    {
-      VERIFY( std::numeric_limits<signed long long>::digits10 == 18 );
-      VERIFY( std::numeric_limits<unsigned long long>::digits10 == 19 );
-    }
-  return test;
-}
-
-// libstdc++/8949
-bool test04()
-{
-  bool test __attribute__((unused)) = true;
-
-  VERIFY( !std::numeric_limits<short>::is_iec559 );
-  VERIFY( !std::numeric_limits<unsigned short>::is_iec559 );
-  VERIFY( !std::numeric_limits<int>::is_iec559 );
-  VERIFY( !std::numeric_limits<unsigned int>::is_iec559 );
-  VERIFY( !std::numeric_limits<long>::is_iec559 );
-  VERIFY( !std::numeric_limits<unsigned long>::is_iec559 );
-  VERIFY( !std::numeric_limits<long long>::is_iec559 );
-  VERIFY( !std::numeric_limits<unsigned long long>::is_iec559 );
-  return test;
-}
-
-int main()
-{
-  test01();
-  test02();
-  test03();
-  test04();
-
-  test_extrema<char>();
-  test_extrema<signed char>();
-  test_extrema<unsigned char>();
-  
-  test_extrema<short>();
-  test_extrema<unsigned short>();
-
-  test_extrema<int>();
-  test_extrema<unsigned>();
-
-  test_extrema<long>();
-  test_extrema<unsigned long>();
-
-  test_extrema<float>();
-  test_extrema<double>();
-  test_extrema<long double>();
-
-  test_epsilon<float>();
-  test_epsilon<double>();
-  test_epsilon<long double>();
-
-  test_sign();
-
-  test_infinity<float>();
-  test_infinity<double>();
-  test_infinity<long double>();
-
-  test_denorm_min<float>();
-  test_denorm_min<double>();
-  test_denorm_min<long double>();
-
-  test_qnan<float>();
-  test_qnan<double>();
-  test_qnan<long double>();
-
-  // ??? How to test SNaN?  We'd perhaps have to be prepared
-  // to catch SIGFPE.  Can't rely on a signal getting through
-  // since the exception can be disabled in the FPU.
-
-  test_is_iec559<float>();
-  test_is_iec559<double>();
-  test_is_iec559<long double>();
-
-  return 0;
-}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/denorm_min.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/denorm_min.cc
new file mode 100644
index 0000000..d0a9c59
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/denorm_min.cc
@@ -0,0 +1,56 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+template<typename T>
+void
+test_denorm_min()
+{
+  bool test;
+
+  if (std::numeric_limits<T>::has_denorm == std::denorm_present)
+    {
+      T denorm = std::numeric_limits<T>::denorm_min();
+      test = (denorm > 0);
+    }
+  else
+    test = true;
+
+  VERIFY (test);
+}
+
+int main()
+{
+  test_denorm_min<float>();
+  test_denorm_min<double>();
+  test_denorm_min<long double>();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/digits10.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/digits10.cc
new file mode 100644
index 0000000..57bff34
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/digits10.cc
@@ -0,0 +1,66 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+// libstdc++/5045
+bool test03()
+{
+  bool test __attribute__((unused)) = true;
+
+  VERIFY( std::numeric_limits<bool>::digits10 == 0 );
+  if (__CHAR_BIT__ == 8)
+    {
+      VERIFY( std::numeric_limits<signed char>::digits10 == 2 );
+      VERIFY( std::numeric_limits<unsigned char>::digits10 == 2 );
+    }
+  if (__CHAR_BIT__ * sizeof(short) == 16)
+    {
+      VERIFY( std::numeric_limits<signed short>::digits10 == 4 );
+      VERIFY( std::numeric_limits<unsigned short>::digits10 == 4 );
+    }
+  if (__CHAR_BIT__ * sizeof(int) == 32)
+    {
+      VERIFY( std::numeric_limits<signed int>::digits10 == 9 );
+      VERIFY( std::numeric_limits<unsigned int>::digits10 == 9 );
+    }
+  if (__CHAR_BIT__ * sizeof(long long) == 64)
+    {
+      VERIFY( std::numeric_limits<signed long long>::digits10 == 18 );
+      VERIFY( std::numeric_limits<unsigned long long>::digits10 == 19 );
+    }
+  return test;
+}
+
+int main()
+{
+  test03();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/epsilon.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/epsilon.cc
new file mode 100644
index 0000000..9a0e755
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/epsilon.cc
@@ -0,0 +1,49 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+template<typename T>
+void test_epsilon()
+{
+  bool test __attribute__((unused)) = true;
+  T epsilon = std::numeric_limits<T>::epsilon();
+  T one = 1;
+
+  VERIFY( one != (one + epsilon) );
+}
+
+int main()
+{
+  test_epsilon<float>();
+  test_epsilon<double>();
+  test_epsilon<long double>();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/infinity.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/infinity.cc
new file mode 100644
index 0000000..c6398a0
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/infinity.cc
@@ -0,0 +1,56 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+template<typename T>
+void
+test_infinity()
+{
+  bool test;
+
+  if (std::numeric_limits<T>::has_infinity)
+    {
+      T inf = std::numeric_limits<T>::infinity();
+      test = (inf + inf == inf);
+    }
+  else
+    test = true;
+
+  VERIFY (test);
+}
+
+int main()
+{
+  test_infinity<float>();
+  test_infinity<double>();
+  test_infinity<long double>();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/is_iec559.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/is_iec559.cc
new file mode 100644
index 0000000..8433759
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/is_iec559.cc
@@ -0,0 +1,81 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+template<typename T>
+void
+test_is_iec559()
+{
+  bool test;
+
+  if (std::numeric_limits<T>::is_iec559)
+    {
+      // IEC 559 requires all of the following.
+      test = (std::numeric_limits<T>::has_infinity
+	      && std::numeric_limits<T>::has_quiet_NaN
+	      && std::numeric_limits<T>::has_signaling_NaN);
+    }
+  else
+    {
+      // If we had all of the following, why didn't we set IEC 559?
+      test = (!std::numeric_limits<T>::has_infinity
+	      || !std::numeric_limits<T>::has_quiet_NaN
+	      || !std::numeric_limits<T>::has_signaling_NaN);
+    }
+
+  VERIFY (test);
+}
+
+// libstdc++/8949
+bool test04()
+{
+  bool test __attribute__((unused)) = true;
+
+  VERIFY( !std::numeric_limits<short>::is_iec559 );
+  VERIFY( !std::numeric_limits<unsigned short>::is_iec559 );
+  VERIFY( !std::numeric_limits<int>::is_iec559 );
+  VERIFY( !std::numeric_limits<unsigned int>::is_iec559 );
+  VERIFY( !std::numeric_limits<long>::is_iec559 );
+  VERIFY( !std::numeric_limits<unsigned long>::is_iec559 );
+  VERIFY( !std::numeric_limits<long long>::is_iec559 );
+  VERIFY( !std::numeric_limits<unsigned long long>::is_iec559 );
+  return test;
+}
+
+int main()
+{
+  test_is_iec559<float>();
+  test_is_iec559<double>();
+  test_is_iec559<long double>();
+
+  test04();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/min_max.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/min_max.cc
new file mode 100644
index 0000000..d300458
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/min_max.cc
@@ -0,0 +1,95 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+template<typename T>
+struct extrema {
+  static T min;
+  static T max;
+};
+
+
+#define DEFINE_EXTREMA(T, m, M) \
+  template<> T extrema<T>::min = m; \
+  template<> T extrema<T>::max = M
+
+DEFINE_EXTREMA(char, CHAR_MIN, CHAR_MAX);
+DEFINE_EXTREMA(signed char, SCHAR_MIN, SCHAR_MAX);
+DEFINE_EXTREMA(unsigned char, 0, UCHAR_MAX);
+DEFINE_EXTREMA(short, SHRT_MIN, SHRT_MAX);
+DEFINE_EXTREMA(unsigned short, 0, USHRT_MAX);
+DEFINE_EXTREMA(int, INT_MIN, INT_MAX);
+DEFINE_EXTREMA(unsigned, 0U, UINT_MAX);
+DEFINE_EXTREMA(long, LONG_MIN, LONG_MAX);
+DEFINE_EXTREMA(unsigned long, 0UL, ULONG_MAX);
+
+#if _GLIBCXX_USE_WCHAR_T
+DEFINE_EXTREMA(wchar_t, WCHAR_MIN, WCHAR_MAX);
+#endif //_GLIBCXX_USE_WCHAR_T
+
+DEFINE_EXTREMA(float, FLT_MIN, FLT_MAX);
+DEFINE_EXTREMA(double, DBL_MIN, DBL_MAX);
+DEFINE_EXTREMA(long double, LDBL_MIN, LDBL_MAX);
+
+#undef DEFINE_EXTREMA
+
+template<typename T>
+void test_extrema()
+{
+  bool test __attribute__((unused)) = true;
+  T limits_min = std::numeric_limits<T>::min();
+  T limits_max = std::numeric_limits<T>::max();
+  T extrema_min = extrema<T>::min;
+  T extrema_max = extrema<T>::max;
+  VERIFY( extrema_min == limits_min );
+  VERIFY( extrema_max == limits_max );
+}
+
+int main()
+{
+  test_extrema<char>();
+  test_extrema<signed char>();
+  test_extrema<unsigned char>();
+  
+  test_extrema<short>();
+  test_extrema<unsigned short>();
+
+  test_extrema<int>();
+  test_extrema<unsigned>();
+
+  test_extrema<long>();
+  test_extrema<unsigned long>();
+
+  test_extrema<float>();
+  test_extrema<double>();
+  test_extrema<long double>();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/quiet_NaN.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/quiet_NaN.cc
new file mode 100644
index 0000000..ef2aab6
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/quiet_NaN.cc
@@ -0,0 +1,56 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+template<typename T>
+void
+test_qnan()
+{
+  bool test;
+
+  if (std::numeric_limits<T>::has_quiet_NaN)
+    {
+      T nan = std::numeric_limits<T>::quiet_NaN();
+      test = (nan != nan);
+    }
+  else
+    test = true;
+
+  VERIFY (test);
+}
+
+int main()
+{
+  test_qnan<float>();
+  test_qnan<double>();
+  test_qnan<long double>();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/sign.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/sign.cc
new file mode 100644
index 0000000..e6c5f1d
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/sign.cc
@@ -0,0 +1,60 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+#ifdef __CHAR_UNSIGNED__
+#define char_is_signed false
+#else
+#define char_is_signed true
+#endif
+
+void test_sign()
+{
+  bool test __attribute__((unused)) = true;
+  VERIFY( std::numeric_limits<char>::is_signed == char_is_signed );
+  VERIFY( std::numeric_limits<signed char>::is_signed == true );
+  VERIFY( std::numeric_limits<unsigned char>::is_signed == false );
+  VERIFY( std::numeric_limits<short>::is_signed == true );
+  VERIFY( std::numeric_limits<unsigned short>::is_signed == false );
+  VERIFY( std::numeric_limits<int>::is_signed == true );
+  VERIFY( std::numeric_limits<unsigned>::is_signed == false );
+  VERIFY( std::numeric_limits<long>::is_signed == true );
+  VERIFY( std::numeric_limits<unsigned long>::is_signed == false );
+  VERIFY( std::numeric_limits<float>::is_signed == true );
+  VERIFY( std::numeric_limits<double>::is_signed == true );
+  VERIFY( std::numeric_limits<long double>::is_signed == true );
+}
+
+int main()
+{
+  test_sign();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/specialization.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/specialization.cc
new file mode 100644
index 0000000..815b7f5
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/specialization.cc
@@ -0,0 +1,107 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// 1999-08-23 bkoz
+
+// Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <limits.h>
+#include <float.h>
+#include <cwchar>
+#include <testsuite_hooks.h>
+
+template<typename T>
+  struct A 
+  {
+    int key;
+  public:
+    A(int i = 0): key(i) { }
+    bool
+    operator==(int i) { return i == key; }
+  };
+
+struct B 
+{
+  B(int i = 0) { }
+};
+
+
+bool test01()
+{
+  bool test __attribute__((unused)) = true;
+  std::numeric_limits< A<B> > obj;
+
+  VERIFY( !obj.is_specialized );
+  VERIFY( obj.min() == 0 );
+  VERIFY( obj.max() == 0 );
+  VERIFY( obj.digits ==  0 );
+  VERIFY( obj.digits10 == 0 );
+  VERIFY( !obj.is_signed );
+  VERIFY( !obj.is_integer );
+  VERIFY( !obj.is_exact );
+  VERIFY( obj.radix == 0 );
+  VERIFY( obj.epsilon() == 0 );
+  VERIFY( obj.round_error() == 0 );
+  VERIFY( obj.min_exponent == 0 );
+  VERIFY( obj.min_exponent10 == 0 );
+  VERIFY( obj.max_exponent == 0 );
+  VERIFY( obj.max_exponent10 == 0 );
+  VERIFY( !obj.has_infinity );
+  VERIFY( !obj.has_quiet_NaN );
+  VERIFY( !obj.has_signaling_NaN );
+  VERIFY( !obj.has_denorm );
+  VERIFY( !obj.has_denorm_loss );
+  VERIFY( obj.infinity() == 0 );
+  VERIFY( obj.quiet_NaN() == 0 );
+  VERIFY( obj.signaling_NaN() == 0 );
+  VERIFY( obj.denorm_min() == 0 );
+  VERIFY( !obj.is_iec559 );
+  VERIFY( !obj.is_bounded );
+  VERIFY( !obj.is_modulo );
+  VERIFY( !obj.traps );
+  VERIFY( !obj.tinyness_before );
+  VERIFY( obj.round_style == std::round_toward_zero );
+  return test;
+}
+
+// test linkage of the generic bits
+template struct std::numeric_limits<B>;
+
+void test02()
+{
+  typedef std::numeric_limits<B> b_nl_type;
+  
+  // Should probably do all of them...
+  const int* __attribute__((unused)) pi1 = &b_nl_type::digits;
+  const int* __attribute__((unused)) pi2 = &b_nl_type::digits10;
+  const int* __attribute__((unused)) pi3 = &b_nl_type::max_exponent10;
+  const bool* __attribute__((unused)) pb1 = &b_nl_type::traps;
+}
+
+
+int main()
+{
+  test01();
+  test02();
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/traps.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/traps.cc
new file mode 100644
index 0000000..e9bdd84
--- /dev/null
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/traps.cc
@@ -0,0 +1,63 @@
+// { dg-options "-mieee" { target alpha*-*-* } }
+// { dg-options "-mieee" { target sh*-*-* } }
+
+// Copyright (C) 2005 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 18.2.1.1 template class numeric_limits
+
+#include <limits>
+#include <testsuite_hooks.h>
+
+template<typename T>
+  void 
+  test_traps()
+  {
+    typedef T value_type;
+    volatile value_type i(5);
+    volatile value_type j(0);
+    
+    if (!std::numeric_limits<value_type>::traps)
+      value_type r = i/j;
+  }
+
+// libstdc++/22203
+int main()
+{
+  test_traps<int>();
+  test_traps<unsigned int>();
+  test_traps<long>();
+  test_traps<unsigned long>();
+  test_traps<long long>();
+  test_traps<unsigned long long>();
+ 
+  /*
+    For floating points, trapping is a different, more complicated
+    story.  If is_iecxxx is true, then division by zero would not trap
+    (infinity).  If is_iecxxx is false, we don't know (VAX may trap for
+    0/0 -- I have to check).  For most cases (i.e. IEE-754), trapping
+    for floating points have to do with whether there is a support for
+    signaling NaN.
+    - Gaby.
+  */
+  //  test_traps<float>();
+  //  test_traps<double>();
+  //  test_traps<long double>();
+
+  return 0;
+}