50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/**********************************************************************
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*
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* constants.h
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*
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* GEOS - Geometry Engine Open Source
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* http://geos.osgeo.org
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*
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* Copyright (C) 2018 Vicky Vergara
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* Copyright (C) 2009 Mateusz Loskot
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* Copyright (C) 2005-2009 Refractions Research Inc.
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* Copyright (C) 2001-2009 Vivid Solutions Inc.
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU Lesser General Public Licence as published
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* by the Free Software Foundation.
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* See the COPYING file for more information.
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*
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*********************************************************************/
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#pragma once
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#ifdef _MSC_VER
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#ifndef NOMINMAX
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#define NOMINMAX 1
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typedef __int64 int64;
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#endif
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#endif
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#include <cmath>
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#include <limits>
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#include <cinttypes>
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#include <cstddef> // for std::size_t
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namespace geos {
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constexpr double MATH_PI = 3.14159265358979323846;
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// Some handy constants
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constexpr double DoubleNotANumber = std::numeric_limits<double>::quiet_NaN();
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constexpr double DoubleMax = (std::numeric_limits<double>::max)();
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constexpr double DoubleInfinity = (std::numeric_limits<double>::infinity)();
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constexpr double DoubleNegInfinity = (-(std::numeric_limits<double>::infinity)());
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constexpr double DoubleEpsilon = std::numeric_limits<double>::epsilon();
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constexpr std::size_t NO_COORD_INDEX = std::numeric_limits<std::size_t>::max();
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constexpr std::size_t INDEX_UNKNOWN = std::numeric_limits<std::size_t>::max();
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} // namespace geos
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