peak_common_math.hpp

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#pragma once
 
#include <type_traits>
#include <algorithm>
#include <cstdint>
#include <cstdlib>
#include <limits>
 
namespace peak
{
namespace common
{
namespace detail
{

template <typename H
    ,
    typename std::enable_if_t<std::is_floating_point<H>::value, int> = 0
    >
constexpr bool AreAlmostEqual(H lhs, H rhs, uint32_t ulp)
{
    return std::abs(lhs - rhs) <= std::numeric_limits<H>::epsilon() * (std::max)(std::abs(lhs), std::abs(rhs)) * static_cast<H>(ulp);
}
 
template<typename T>
constexpr T Clamp(T value, T minimum, T maximum)
{
    if (value < minimum)
    {
        return minimum;
    }
    if (value > maximum)
    {
        return maximum;
    }
    return value;
}
 
} // namespace detail
} // namespace common 
} // namespace peak