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authorbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2005-11-10 02:05:13 +0000
committerbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2005-11-10 02:05:13 +0000
commitc7b3f7cbc9559c183abea5feab67ea81fb9b9940 (patch)
tree6d3e047cb7440acf5457057991b12ca9d7a93b10 /libstdc++-v3/testsuite/18_support/numeric_limits/epsilon.cc
parent5385616230b8f6cb826fa540f47b07dc1c0c8717 (diff)
downloadgcc-c7b3f7cbc9559c183abea5feab67ea81fb9b9940.tar.gz
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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@106727 138bc75d-0d04-0410-961f-82ee72b054a4
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+// { 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;
+}