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Add operator&

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This commit is contained in:
Matt Borland
2023-06-30 17:23:57 +02:00
parent fd61faaa51
commit 5808c27206
2 changed files with 19 additions and 5 deletions
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11
include/boost/charconv/detail/compute_float80.hpp
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@@ -170,19 +170,20 @@ inline __float128 pow2top<__float128>(std::int64_t p) noexcept
#endif
template <typename T>
inline uint128 mask_mantissa(uint128 z) noexcept;
inline uint128 mask_mantissa(uint256 z) noexcept;
#if BOOST_CHARCONV_LDBL_BITS == 80
template <typename T>
inline uint128 mask_mantissa(uint128 z) noexcept
inline uint128 mask_mantissa(uint256 z) noexcept
{
return static_cast<uint128>(static_cast<std::uint64_t>(z));
static constexpr uint128 mask {0x1FFFFFFFFFFFF, UINT64_MAX};
return (z >> 113) & mask;
}
#elif BOOST_CHARCONV_LDBL_BITS == 128
template <typename T>
inline uint128 mask_mantissa(uint128 z) noexcept
inline uint128 mask_mantissa(uint256 z) noexcept
{
static constexpr uint128 mask {0x1FFFFFFFFFFFF, UINT64_MAX};
return (z >> 113) & mask;
@@ -192,7 +193,7 @@ inline uint128 mask_mantissa(uint128 z) noexcept
#ifdef BOOST_CHARCONV_HAS_FLOAT128
template <>
inline uint128 mask_mantissa<__float128>(uint128 z) noexcept
inline uint128 mask_mantissa<__float128>(uint256 z) noexcept
{
static constexpr uint128 mask {0x1FFFFFFFFFFFF, UINT64_MAX};
return (z >> 113) & mask;

13
include/boost/charconv/detail/emulated256.hpp
View File

@@ -45,6 +45,9 @@ struct uint256
return *this;
}
inline friend uint256 operator&(uint256 lhs, uint256 rhs) noexcept;
inline friend uint256 operator&(uint256 lhs, uint128 rhs) noexcept;
inline friend bool operator==(uint256 lhs, uint256 rhs) noexcept;
inline friend bool operator==(uint256 lhs, std::uint64_t rhs) noexcept;
@@ -101,6 +104,16 @@ uint256 operator|(uint256 lhs, uint256 rhs) noexcept
return {lhs.high | rhs.high, lhs.low | rhs.low};
}
uint256 operator&(uint256 lhs, uint256 rhs) noexcept
{
return {lhs.high & rhs.high, lhs.low & rhs.low};
}
uint256 operator&(uint256 lhs, uint128 rhs) noexcept
{
return {lhs.high, lhs.low & rhs.low};
}
bool operator==(uint256 lhs, uint256 rhs) noexcept
{
return lhs.high == rhs.high && lhs.low == rhs.low;