testsuite_random.h: New.
2011-03-18 Paolo Carlini <paolo.carlini@oracle.com> * testsuite/util/testsuite_random.h: New. * testsuite/lib/libstdc++.exp (check_v3_target_c99_math, dg-require-c99_math): Add. * testsuite/26_numerics/random/bernoulli_distribution/ operators/values.cc: New. * testsuite/26_numerics/random/binomial_distribution/ operators/values.cc: Likewise. * testsuite/26_numerics/random/geometric_distribution/ operators/values.cc: Likewise. From-SVN: r171133
This commit is contained in:
Paolo Carlini
Paolo Carlini
parent
30a49b23ed
commit
294eab8c10
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@ -1,3 +1,15 @@
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2011-03-18 Paolo Carlini <paolo.carlini@oracle.com>
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* testsuite/util/testsuite_random.h: New.
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* testsuite/lib/libstdc++.exp (check_v3_target_c99_math,
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dg-require-c99_math): Add.
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* testsuite/26_numerics/random/bernoulli_distribution/
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operators/values.cc: New.
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* testsuite/26_numerics/random/binomial_distribution/
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operators/values.cc: Likewise.
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* testsuite/26_numerics/random/geometric_distribution/
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operators/values.cc: Likewise.
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2011-03-16 Benjamin Kosnik <bkoz@redhat.com>
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* config/abi/pre/gnu.ver: Add base destructors for stdexcept classes.
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// { dg-options "-std=gnu++0x" }
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// { dg-require-cstdint "" }
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//
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// Copyright (C) 2011 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 26.5.8.2.1 Class template bernoulli_distribution [rand.dist.bern.bernoulli]
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#include <random>
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#include <functional>
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#include <testsuite_random.h>
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void test01()
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{
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using namespace __gnu_test;
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std::mt19937 eng;
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std::bernoulli_distribution bd1(0.25);
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auto bbd1 = std::bind(bd1, eng);
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testDiscreteDist(bbd1, [](int n) { return bernoulli_pdf(n, 0.25); } );
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std::bernoulli_distribution bd2(0.5);
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auto bbd2 = std::bind(bd2, eng);
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testDiscreteDist(bbd2, [](int n) { return bernoulli_pdf(n, 0.5); } );
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std::bernoulli_distribution bd3(0.75);
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auto bbd3 = std::bind(bd3, eng);
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testDiscreteDist(bbd3, [](int n) { return bernoulli_pdf(n, 0.75); } );
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}
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int main()
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{
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test01();
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return 0;
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}
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@ -0,0 +1,52 @@
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// { dg-options "-std=gnu++0x" }
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// { dg-require-cstdint "" }
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// { dg-require-c99_math "" }
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//
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// Copyright (C) 2011 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 26.5.8.2.2 Class template binomial_distribution [rand.dist.bern.bin]
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#include <random>
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#include <functional>
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#include <testsuite_random.h>
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void test01()
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{
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using namespace __gnu_test;
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std::mt19937 eng;
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std::binomial_distribution<> bd1(5, 0.3);
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auto bbd1 = std::bind(bd1, eng);
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testDiscreteDist(bbd1, [](int n) { return binomial_pdf(n, 0.3, 5); } );
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std::binomial_distribution<> bd2(55, 0.3);
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auto bbd2 = std::bind(bd2, eng);
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testDiscreteDist(bbd2, [](int n) { return binomial_pdf(n, 0.3, 55); } );
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// libstdc++/48114
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std::binomial_distribution<> bd3(10, 0.75);
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auto bbd3 = std::bind(bd3, eng);
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testDiscreteDist(bbd3, [](int n) { return binomial_pdf(n, 0.75, 10); } );
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}
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int main()
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{
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test01();
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return 0;
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}
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// { dg-options "-std=gnu++0x" }
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// { dg-require-cstdint "" }
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//
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// Copyright (C) 2011 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 26.5.8.2.3 Class template geometric_distribution [rand.dist.bern.geom]
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#include <random>
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#include <functional>
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#include <testsuite_random.h>
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void test01()
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{
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using namespace __gnu_test;
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std::mt19937 eng;
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std::geometric_distribution<> gd1(0.5);
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auto bgd1 = std::bind(gd1, eng);
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testDiscreteDist(bgd1, [](int n) { return geometric_pdf(n, 0.5); } );
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std::geometric_distribution<> gd2(0.75);
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auto bgd2 = std::bind(gd2, eng);
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testDiscreteDist(bgd2, [](int n) { return geometric_pdf(n, 0.75); } );
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// libstdc++/48114
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std::geometric_distribution<> gd3(0.25);
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auto bgd3 = std::bind(gd3, eng);
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testDiscreteDist(bgd3, [](int n) { return geometric_pdf(n, 0.25); } );
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}
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int main()
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{
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test01();
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return 0;
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}
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@ -1,6 +1,6 @@
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# Handlers for additional dg-xxx keywords in tests.
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# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
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# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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# Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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@ -107,6 +107,15 @@ proc dg-require-cstdint { args } {
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return
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}
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proc dg-require-c99_math { args } {
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if { ![ check_v3_target_c99_math ] } {
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upvar dg-do-what dg-do-what
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set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
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return
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}
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return
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}
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proc dg-require-atomic-builtins { args } {
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if { ![ check_v3_target_atomic_builtins ] } {
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upvar dg-do-what dg-do-what
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@ -1,6 +1,7 @@
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# libstdc++ "tool init file" for DejaGNU
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# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
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# 2009, 2010, 2011
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# Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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@ -1145,12 +1146,70 @@ proc check_v3_target_cstdint { } {
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return $et_cstdint
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}
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proc check_v3_target_c99_math { } {
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global cxxflags
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global DEFAULT_CXXFLAGS
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global et_c99_math
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global tool
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if { ![info exists et_c99_math_target_name] } {
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set et_c99_math_target_name ""
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}
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# If the target has changed since we set the cached value, clear it.
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set current_target [current_target_name]
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if { $current_target != $et_c99_math_target_name } {
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verbose "check_v3_target_c99_math: `$et_c99_math_target_name'" 2
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set et_c99_math_target_name $current_target
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if [info exists et_c99_math] {
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verbose "check_v3_target_c99_math: removing cached result" 2
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unset et_c99_math
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}
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}
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if [info exists et_c99_math] {
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verbose "check_v3_target_c99_math: using cached result" 2
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} else {
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set et_c99_math 0
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# Set up and compile a C++0x test program that depends
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# on the C99 math facilities to be available.
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set src c99_math[pid].cc
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set exe c99_math[pid].exe
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set f [open $src "w"]
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puts $f "#include <tr1/cmath>"
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puts $f "int main()"
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puts $f "#ifdef _GLIBCXX_USE_C99_MATH_TR1"
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puts $f "{ return 0; }"
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puts $f "#endif"
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close $f
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set cxxflags_saved $cxxflags
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set cxxflags "$cxxflags $DEFAULT_CXXFLAGS -Werror"
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set lines [v3_target_compile $src $exe executable ""]
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set cxxflags $cxxflags_saved
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file delete $src
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if [string match "" $lines] {
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# No error message, compilation succeeded.
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set et_c99_math 1
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} else {
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verbose "check_v3_target_c99_math: compilation failed" 2
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}
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}
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verbose "check_v3_target_c99_math: $et_c99_math" 2
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return $et_c99_math
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}
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proc check_v3_target_atomic_builtins { } {
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global cxxflags
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global DEFAULT_CXXFLAGS
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global et_cstdint
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global et_atomic_builtins
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global tool
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global tool
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if { ![info exists et_atomic_builtins_target_name] } {
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set et_atomic_builtins_target_name ""
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// -*- C++ -*-
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// Copyright (C) 2011 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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/**
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* @file testsuite_random.h
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*/
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#ifndef _GLIBCXX_TESTSUITE_RANDOM_H
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#define _GLIBCXX_TESTSUITE_RANDOM_H
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#include <cmath>
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#include <testsuite_hooks.h>
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namespace __gnu_test
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{
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// Adapted for libstdc++ from GNU gsl-1.14/randist/test.c
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// Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007, 2010
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// James Theiler, Brian Gough
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template<unsigned long BINS = 100,
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unsigned long N = 100000,
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typename Distribution, typename Pdf>
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void
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testDiscreteDist(Distribution& f, Pdf pdf)
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{
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bool test __attribute__((unused)) = true;
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double count[BINS], p[BINS];
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for (unsigned long i = 0; i < BINS; i++)
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count[i] = 0;
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for (unsigned long i = 0; i < N; i++)
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{
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auto r = f();
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if (r >= 0 && r < BINS)
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count[r]++;
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}
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for (unsigned long i = 0; i < BINS; i++)
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p[i] = pdf(i);
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for (unsigned long i = 0; i < BINS; i++)
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{
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bool status_i;
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double d = std::abs(count[i] - N * p[i]);
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if (p[i] != 0)
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{
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double s = d / std::sqrt(N * p[i]);
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status_i = (s > 5) && (d > 1);
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}
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else
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status_i = (count[i] != 0);
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VERIFY( !status_i );
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}
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}
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inline double
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bernoulli_pdf(int k, double p)
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{
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if (k == 0)
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return 1 - p;
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else if (k == 1)
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return p;
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else
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return 0;
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}
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#ifdef _GLIBCXX_USE_C99_MATH_TR1
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inline double
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binomial_pdf(int k, double p, int n)
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{
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if (k < 0 || k > n)
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return 0;
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else
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{
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double q;
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if (p == 0)
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q = (k == 0) ? 1 : 0;
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else if (p == 1)
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q = (k == n) ? 1 : 0;
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else
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{
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double ln_Cnk = (std::lgamma(n + 1) - std::lgamma(k + 1)
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- std::lgamma(n - k + 1));
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q = ln_Cnk + k * std::log(p) + (n - k) * std::log1p(-p);
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q = std::exp(q);
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}
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return q;
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}
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}
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#endif
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inline double
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geometric_pdf(int k, double p)
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{
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if (k < 0)
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return 0;
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else if (k == 0)
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return p;
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else
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return p * std::pow(1 - p, k);
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}
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} // namespace __gnu_test
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#endif // #ifndef _GLIBCXX_TESTSUITE_RANDOM_H
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