112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
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///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
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// Digital Ltd. LLC
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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///////////////////////////////////////////////////////////////////////////
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// Primary authors:
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// Florian Kainz <kainz@ilm.com>
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// Rod Bogart <rgb@ilm.com>
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#ifndef INCLUDED_HALF_LIMITS_H
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#define INCLUDED_HALF_LIMITS_H
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//------------------------------------------------------------------------
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//
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// C++ standard library-style numeric_limits for class half
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//
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//------------------------------------------------------------------------
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#include <limits>
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#include "half.h"
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namespace std {
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template <>
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class numeric_limits <half>
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{
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public:
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static const bool is_specialized = true;
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static half min () throw () {return HALF_NRM_MIN;}
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static half max () throw () {return HALF_MAX;}
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static const int digits = HALF_MANT_DIG;
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static const int digits10 = HALF_DIG;
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static const bool is_signed = true;
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static const bool is_integer = false;
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static const bool is_exact = false;
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static const int radix = HALF_RADIX;
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static half epsilon () throw () {return HALF_EPSILON;}
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static half round_error () throw () {return HALF_EPSILON / 2;}
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static const int min_exponent = HALF_MIN_EXP;
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static const int min_exponent10 = HALF_MIN_10_EXP;
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static const int max_exponent = HALF_MAX_EXP;
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static const int max_exponent10 = HALF_MAX_10_EXP;
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static const bool has_infinity = true;
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static const bool has_quiet_NaN = true;
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static const bool has_signaling_NaN = true;
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static const float_denorm_style has_denorm = denorm_present;
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static const bool has_denorm_loss = false;
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static half infinity () throw () {return half::posInf();}
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static half quiet_NaN () throw () {return half::qNan();}
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static half signaling_NaN () throw () {return half::sNan();}
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static half denorm_min () throw () {return HALF_MIN;}
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static const bool is_iec559 = false;
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static const bool is_bounded = false;
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static const bool is_modulo = false;
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static const bool traps = true;
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static const bool tinyness_before = false;
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static const float_round_style round_style = round_to_nearest;
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#if __cplusplus >= 201103L
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// C++11 additions.
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static constexpr int max_digits10 = HALF_DECIMAL_DIG;
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static half lowest () {return -HALF_MAX;}
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#endif
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};
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} // namespace std
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#endif
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