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Replace uint128_wrapper with uint128_fallback

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This commit is contained in:
Victor Zverovich
2022-04-02 10:03:29 -07:00
parent b4dc7a1d34
commit 02eb215f2f
3 changed files with 50 additions and 52 deletions
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8
include/fmt/format.h
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@@ -321,11 +321,16 @@ inline auto is_big_endian() -> bool {
class uint128_fallback {
private:
uint64_t lo_, hi_;
constexpr uint128_fallback(uint64_t hi, uint64_t lo) : lo_(lo), hi_(hi) {}
friend uint128_fallback umul128(uint64_t x, uint64_t y) noexcept;
public:
constexpr uint128_fallback(uint64_t hi, uint64_t lo) : lo_(lo), hi_(hi) {}
constexpr uint128_fallback(uint64_t value = 0) : lo_(value), hi_(0) {}
constexpr uint64_t high() const noexcept { return hi_; }
constexpr uint64_t low() const noexcept { return lo_; }
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
constexpr explicit operator T() const {
return static_cast<T>(lo_);
@@ -384,6 +389,7 @@ class uint128_fallback {
lo_ = new_lo;
hi_ = new_hi;
}
FMT_CONSTEXPR20 uint128_fallback& operator+=(uint64_t n) noexcept;
};
using uint128_t = conditional_t<FMT_USE_INT128, uint128_opt, uint128_fallback>;