accumtraits4.hpp

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#pragma once

template <typename T>
struct AccumulationTraits;

template <>
struct AccumulationTraits<char>
{
        using type = int;
        static constexpr type zero() { return 0; }
};

template <>
struct AccumulationTraits<short>
{
        using type = int;
        static constexpr type zero() { return 0; }
};

template <>
struct AccumulationTraits<int>
{
        using type = long;
        static constexpr type zero() { return 0; }
};

template <>
struct AccumulationTraits<unsigned int>
{
        using type = unsigned long;
        static constexpr type zero() { return 0; }
};

template <>
struct AccumulationTraits<float>
{
        using type = double;
        static constexpr type zero() { return 0; }
};