src/core/common/numeric_limits.hpp

/*
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 *     derived from this software without specific prior written permission.
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/**
 * @file
 *   This file includes definitions for numeric limits.
 */

#ifndef NUMERIC_LIMITS_HPP_
#define NUMERIC_LIMITS_HPP_

#include <stdint.h>

namespace ot {

/**
 * This class template provides a way to query properties of arithmetic types.
 *
 * There are no members if `Type` is not a supported arithmetic type.
 *
 */
template <typename Type> struct NumericLimits
{
};

// Specialization for different integral types.

template <> struct NumericLimits<int8_t>
{
    static constexpr int8_t kMin = INT8_MIN;
    static constexpr int8_t kMax = INT8_MAX;
};

template <> struct NumericLimits<int16_t>
{
    static constexpr int16_t kMin = INT16_MIN;
    static constexpr int16_t kMax = INT16_MAX;
};

template <> struct NumericLimits<int32_t>
{
    static constexpr int32_t kMin = INT32_MIN;
    static constexpr int32_t kMax = INT32_MAX;
};

template <> struct NumericLimits<int64_t>
{
    static constexpr int64_t kMin = INT64_MIN;
    static constexpr int64_t kMax = INT64_MAX;
};

template <> struct NumericLimits<uint8_t>
{
    static constexpr uint8_t kMin = 0;
    static constexpr uint8_t kMax = UINT8_MAX;
};

template <> struct NumericLimits<uint16_t>
{
    static constexpr uint16_t kMin = 0;
    static constexpr uint16_t kMax = UINT16_MAX;
};

template <> struct NumericLimits<uint32_t>
{
    static constexpr uint32_t kMin = 0;
    static constexpr uint32_t kMax = UINT32_MAX;
};

template <> struct NumericLimits<uint64_t>
{
    static constexpr uint64_t kMin = 0;
    static constexpr uint64_t kMax = UINT64_MAX;
};

} // namespace ot

#endif // NUMERIC_LIMITS_HPP_