cgal/Installation/config/testfiles/CGAL_CFG_NO_LIMITS.cpp

46 lines
1.7 KiB
C++

// Copyright (c) 1997 Utrecht University (The Netherlands),
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : various
// ---------------------------------------------------------------------
// A short test program to evaluate a C++ compiler.
// This program is used by install_cgal.
// The following documentation will be pasted in the generated configfile.
// ---------------------------------------------------------------------
//| If a compiler doesn't know <limits> (g++-2.95)
//| or has a bug in the implementation (Sun CC 5.4, MipsPro CC)
//| CGAL_CFG_NO_LIMITS is set.
#include <limits>
int main()
{
double d = std::numeric_limits<double>::denorm_min();
double e = std::numeric_limits<double>::min();
// Note : denorm_min == min is actually not necessarily a bug.
// So a better test should be found.
if (d == 0 || d == e)
return 1;
return 0;
}