69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
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// Copyright (c) 1999-2004
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Number_types/include/CGAL/Interval_arithmetic_impl.h $
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// $Id: Interval_arithmetic_impl.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Sylvain Pion
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namespace CGAL {
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#ifdef CGAL_CFG_DENORMALS_COMPILE_BUG
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// For compilers which bug on denormalized values at compile time.
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// We generate CGAL_IA_MIN_DOUBLE at run time.
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namespace {
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double init_min_double()
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{
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double d = 1;
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double e = 1;
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do {
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d = e;
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e = CGAL_IA_FORCE_TO_DOUBLE(e/2);
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} while (e != 0);
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return d;
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}
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} // anonymous namespace
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#ifndef CGAL_HEADER_ONLY
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namespace internal {
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double minimin = init_min_double();
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double& get_static_minimin()
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{
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return minimin;
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}
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}
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#else // CGAL_HEADER_ONLY
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namespace internal {
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double& get_static_minimin()
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{
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static double minimin = init_min_double();
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return minimin;
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}
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}
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#endif // CGAL_HEADER_ONLY
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#endif // CGAL_CFG_DENORMALS_COMPILE_BUG
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#ifndef CGAL_HEADER_ONLY
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#ifdef _MSC_VER
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namespace {
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int dummy_symbol_for_stopping_VC_linker_warning;
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} // namespace
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#endif
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#endif // CGAL_HEADER_ONLY
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} //namespace CGAL
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