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Add __float128 support

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This commit is contained in:
Victor Zverovich
2022-04-03 08:44:51 -07:00
parent 686de58886
commit f607e3e970
3 changed files with 29 additions and 20 deletions
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29
include/fmt/format.h
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@@ -336,24 +336,26 @@ class uint128_fallback {
return static_cast<T>(lo_);
}
friend auto operator==(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> bool {
friend constexpr auto operator==(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> bool {
return lhs.hi_ == rhs.hi_ && lhs.lo_ == rhs.lo_;
}
friend auto operator!=(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> bool {
friend constexpr auto operator!=(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> bool {
return !(lhs == rhs);
}
friend auto operator>(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> bool {
friend constexpr auto operator>(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> bool {
return lhs.hi_ != rhs.hi_ ? lhs.hi_ > rhs.hi_ : lhs.lo_ > rhs.lo_;
}
friend auto operator|(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> uint128_fallback {
friend constexpr auto operator|(const uint128_fallback& lhs,
const uint128_fallback& rhs)
-> uint128_fallback {
return {lhs.hi_ | rhs.hi_, lhs.lo_ | rhs.lo_};
}
friend auto operator&(const uint128_fallback& lhs,
const uint128_fallback& rhs) -> uint128_fallback {
friend constexpr auto operator&(const uint128_fallback& lhs,
const uint128_fallback& rhs)
-> uint128_fallback {
return {lhs.hi_ & rhs.hi_, lhs.lo_ & rhs.lo_};
}
friend auto operator+(const uint128_fallback& lhs,
@@ -366,12 +368,13 @@ class uint128_fallback {
-> uint128_fallback {
FMT_ASSERT(lhs.hi_ == 0, "");
uint64_t hi = (lhs.lo_ >> 32) * rhs;
return {hi >> 32, (hi << 32) + (lhs.lo_ & ~uint32_t()) * rhs};
uint64_t lo = (lhs.lo_ & ~uint32_t()) * rhs;
uint64_t new_lo = (hi << 32) + lo;
return {(hi >> 32) + (new_lo < lo ? 1 : 0), new_lo};
}
friend auto operator-(const uint128_fallback& lhs, uint64_t rhs)
-> uint128_fallback {
FMT_ASSERT(lhs.lo_ >= rhs, "");
return {lhs.hi_, lhs.lo_ - rhs};
return {lhs.hi_ - (lhs.lo_ < rhs ? 1 : 0), lhs.lo_ - rhs};
}
FMT_CONSTEXPR auto operator>>(int shift) const -> uint128_fallback {
if (shift == 64) return {0, hi_};