Sub.h

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// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <bit>
#include <concepts>
#include <type_traits>
 
namespace mini_llvm::ops {
 
struct Sub {
    template <typename T>
        requires std::integral<T>
    T operator()(T x, T y) const noexcept {
        return
            std::bit_cast<T>(
                static_cast<std::make_unsigned_t<T>>(
                    std::bit_cast<std::make_unsigned_t<T>>(x) - std::bit_cast<std::make_unsigned_t<T>>(y)));
    }
 
    bool operator()(bool x, bool y) const noexcept {
        return x != y;
    }
};
 
} // namespace mini_llvm::ops