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34 
35 
36 // Primary authors:
37 //     Florian Kainz <kainz@ilm.com>
38 //     Rod Bogart <rgb@ilm.com>
39 
40 
41 #ifndef INCLUDED_HALF_LIMITS_H
42 #define INCLUDED_HALF_LIMITS_H
43 
44 
45 //------------------------------------------------------------------------
46 //
47 //	C++ standard library-style numeric_limits for class half
48 //
49 //------------------------------------------------------------------------
50 
51 #include <limits>
52 #include "half.h"
53 
54 namespace std {
55 
56 template <>
57 class numeric_limits <half>
58 {
59   public:
60 
61     static const bool is_specialized = true;
62 
min()63     static half min () throw () {return HALF_NRM_MIN;}
max()64     static half max () throw () {return HALF_MAX;}
65 
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;
epsilon()72     static half epsilon () throw () {return HALF_EPSILON;}
round_error()73     static half round_error () throw () {return HALF_EPSILON / 2;}
74 
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;
79 
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;
infinity()85     static half infinity () throw () {return half::posInf();}
quiet_NaN()86     static half quiet_NaN () throw () {return half::qNan();}
signaling_NaN()87     static half signaling_NaN () throw () {return half::sNan();}
denorm_min()88     static half denorm_min () throw () {return HALF_MIN;}
89 
90     static const bool is_iec559 = false;
91     static const bool is_bounded = false;
92     static const bool is_modulo = false;
93 
94     static const bool traps = true;
95     static const bool tinyness_before = false;
96     static const float_round_style round_style = round_to_nearest;
97 };
98 
99 
100 } // namespace std
101 
102 #endif
103