1 /*
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28 
29 /**
30  * @file
31  *   This file includes definitions for numeric limits.
32  */
33 
34 #ifndef NUMERIC_LIMITS_HPP_
35 #define NUMERIC_LIMITS_HPP_
36 
37 #include <stdint.h>
38 
39 namespace ot {
40 
41 /**
42  * Provides a way to query properties of arithmetic types.
43  *
44  * There are no members if `Type` is not a supported arithmetic type.
45  *
46  */
47 template <typename Type> struct NumericLimits
48 {
49 };
50 
51 // Specialization for different integral types.
52 
53 template <> struct NumericLimits<int8_t>
54 {
55     static constexpr int8_t kMin = INT8_MIN;
56     static constexpr int8_t kMax = INT8_MAX;
57 };
58 
59 template <> struct NumericLimits<int16_t>
60 {
61     static constexpr int16_t kMin = INT16_MIN;
62     static constexpr int16_t kMax = INT16_MAX;
63 };
64 
65 template <> struct NumericLimits<int32_t>
66 {
67     static constexpr int32_t kMin = INT32_MIN;
68     static constexpr int32_t kMax = INT32_MAX;
69 };
70 
71 template <> struct NumericLimits<int64_t>
72 {
73     static constexpr int64_t kMin = INT64_MIN;
74     static constexpr int64_t kMax = INT64_MAX;
75 };
76 
77 template <> struct NumericLimits<uint8_t>
78 {
79     static constexpr uint8_t kMin = 0;
80     static constexpr uint8_t kMax = UINT8_MAX;
81 };
82 
83 template <> struct NumericLimits<uint16_t>
84 {
85     static constexpr uint16_t kMin = 0;
86     static constexpr uint16_t kMax = UINT16_MAX;
87 };
88 
89 template <> struct NumericLimits<uint32_t>
90 {
91     static constexpr uint32_t kMin = 0;
92     static constexpr uint32_t kMax = UINT32_MAX;
93 };
94 
95 template <> struct NumericLimits<uint64_t>
96 {
97     static constexpr uint64_t kMin = 0;
98     static constexpr uint64_t kMax = UINT64_MAX;
99 };
100 
101 } // namespace ot
102 
103 #endif // NUMERIC_LIMITS_HPP_
104