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#pragma once
#include <cmath>
#include <limits>
#include <type_traits>
template <typename T>
inline bool isNaN(T x)
{
/// To be sure, that this function is zero-cost for non-floating point types.
if constexpr (std::is_floating_point_v<T>)
return std::isnan(x);
else
return false;
}
template <typename T>
inline bool isFinite(T x)
{
if constexpr (std::is_floating_point_v<T>)
return std::isfinite(x);
else
return true;
}
template <typename T>
T NaNOrZero()
{
if constexpr (std::is_floating_point_v<T>)
return std::numeric_limits<T>::quiet_NaN();
else
return {};
}
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