1 ///////////////////////////////////////////////////////////////////////////
3 // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
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33 ///////////////////////////////////////////////////////////////////////////
37 // Florian Kainz <kainz@ilm.com>
38 // Rod Bogart <rgb@ilm.com>
41 #ifndef INCLUDED_HALF_LIMITS_H
42 #define INCLUDED_HALF_LIMITS_H
45 //------------------------------------------------------------------------
47 // C++ standard library-style numeric_limits for class half
49 //------------------------------------------------------------------------
57 class numeric_limits <half>
61 static const bool is_specialized = true;
63 static half min () throw () {return HALF_NRM_MIN;}
64 static half max () throw () {return HALF_MAX;}
66 static const int digits = HALF_MANT_DIG;
67 static const int digits10 = HALF_DIG;
68 static const bool is_signed = true;
69 static const bool is_integer = false;
70 static const bool is_exact = false;
71 static const int radix = HALF_RADIX;
72 static half epsilon () throw () {return HALF_EPSILON;}
73 static half round_error () throw () {return HALF_EPSILON / 2;}
75 static const int min_exponent = HALF_MIN_EXP;
76 static const int min_exponent10 = HALF_MIN_10_EXP;
77 static const int max_exponent = HALF_MAX_EXP;
78 static const int max_exponent10 = HALF_MAX_10_EXP;
80 static const bool has_infinity = true;
81 static const bool has_quiet_NaN = true;
82 static const bool has_signaling_NaN = true;
83 static const float_denorm_style has_denorm = denorm_present;
84 static const bool has_denorm_loss = false;
85 static half infinity () throw () {return half::posInf();}
86 static half quiet_NaN () throw () {return half::qNan();}
87 static half signaling_NaN () throw () {return half::sNan();}
88 static half denorm_min () throw () {return HALF_MIN;}
90 static const bool is_iec559 = false;
91 static const bool is_bounded = false;
92 static const bool is_modulo = false;
94 static const bool traps = true;
95 static const bool tinyness_before = false;
96 static const float_round_style round_style = round_to_nearest;