random (mersenne_twister<>::operator==, [...]): Implement.

2006-06-06  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/random (mersenne_twister<>::operator==,
	operator!=, operator<<, operator>>): Implement.
	* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
	operators/equal.cc: New.	
	* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
	operators/not_equal.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
	operators/serialize.cc: Likewise.

	* include/tr1/random (subtract_with_carry<>::operator==): Fix,
	compare the whole state; use std::equal.

	* include/tr1/random: Minor formatting and style changes.

From-SVN: r114459

3 files changed, 159 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/equal.cc b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/equal.cc
new file mode 100644
index 0000000..2cecdb6
--- /dev/null
+++ b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/equal.cc
@@ -0,0 +1,53 @@
+// 2006-06-06  Paolo Carlini  <pcarlini@suse.de>
+//
+// Copyright (C) 2006 Free Software Foundation, Inc.
+//
+// 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.
+
+// 5.1.4.2 class template mersenne_twister [tr.rand.eng.mers]
+// 5.1.1 Table 16
+
+#include <tr1/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std::tr1;
+
+  mersenne_twister<
+    unsigned long, 32, 624, 397, 31,
+    0x9908b0dful, 11, 7,
+    0x9d2c5680ul, 15,
+    0xefc60000ul, 18> u, v;
+
+  VERIFY( u == v );
+  
+  for (int i = 0; i < 100; ++i)
+    {
+      u();
+      v();
+    }
+  VERIFY( u == v );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/not_equal.cc b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/not_equal.cc
new file mode 100644
index 0000000..08252ce
--- /dev/null
+++ b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/not_equal.cc
@@ -0,0 +1,52 @@
+// 2006-06-06  Paolo Carlini  <pcarlini@suse.de>
+//
+// Copyright (C) 2006 Free Software Foundation, Inc.
+//
+// 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.
+
+// 5.1.4.2 class template mersenne_twister [tr.rand.eng.mers]
+// 5.1.1 Table 16
+
+#include <tr1/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std::tr1;
+
+  mersenne_twister<
+    unsigned long, 32, 624, 397, 31,
+    0x9908b0dful, 11, 7,
+    0x9d2c5680ul, 15,
+    0xefc60000ul, 18> u(1);
+
+  mersenne_twister<
+    unsigned long, 32, 624, 397, 31,
+    0x9908b0dful, 11, 7,
+    0x9d2c5680ul, 15,
+    0xefc60000ul, 18> v(2);
+  
+  VERIFY( u != v );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/serialize.cc b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/serialize.cc
new file mode 100644
index 0000000..a862e3c
--- /dev/null
+++ b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/serialize.cc
@@ -0,0 +1,54 @@
+// 2006-06-06  Paolo Carlini  <pcarlini@suse.de>
+//
+// Copyright (C) 2006 Free Software Foundation, Inc.
+//
+// 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.
+
+// 5.1.4.2 class template mersenne_twister [tr.rand.eng.mers]
+// 5.1.1 Table 16
+
+#include <sstream>
+#include <tr1/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+  using std::tr1::mersenne_twister;
+
+  std::stringstream str;
+  mersenne_twister<
+    unsigned long, 32, 624, 397, 31,
+    0x9908b0dful, 11, 7,
+    0x9d2c5680ul, 15,
+    0xefc60000ul, 18> u, v;
+  
+  u(); // advance
+  str << u;
+  
+  VERIFY( u != v );
+  
+  str >> v;
+  VERIFY( u == v );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}