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cs440-acg/ext/openexr/IlmBase/Half/halfLimits.h

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