boost/charconv
2
0
Fork 0
mirror of https://github.com/boostorg/charconv.git synced 2026-02-09 23:12:24 +00:00
Code Issues Projects Releases Wiki Activity

Add increment operators

Browse Source
This commit is contained in:
Matt Borland
2023-06-09 09:47:24 +02:00
parent 1325c38393
commit 0fc06cc7ed
1 changed files with 32 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
include/boost/charconv/detail/emulated128.hpp
View File

@@ -444,10 +444,16 @@ struct uint128
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &operator++() noexcept;
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &operator++(int) noexcept;
BOOST_CHARCONV_CXX14_CONSTEXPR friend uint128 operator-(uint128 lhs, uint128 rhs) noexcept;
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &operator-=(uint128 v) noexcept;
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &operator--() noexcept;
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &operator--(int) noexcept;
inline friend uint128 operator*(uint128 lhs, uint128 rhs) noexcept;
inline uint128 &operator*=(uint128 v) noexcept;
@@ -601,6 +607,11 @@ BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &uint128::operator++() noexcept
return *this;
}
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &uint128::operator++(int) noexcept
{
return ++(*this);
}
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 operator-(uint128 lhs, uint128 rhs) noexcept
{
const uint128 temp {lhs.high - rhs.high, lhs.low - rhs.low};
@@ -620,6 +631,26 @@ BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &uint128::operator-=(uint128 v) noexcept
return *this;
}
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &uint128::operator--() noexcept
{
if (this->low == 0)
{
this->low = UINT64_MAX;
--this->high;
}
else
{
--this->low;
}
return *this;
}
BOOST_CHARCONV_CXX14_CONSTEXPR uint128 &uint128::operator--(int) noexcept
{
return --(*this);
}
inline uint128 operator*(uint128 lhs, uint128 rhs) noexcept
{
#if defined(BOOST_CHARCONV_HAS_MSVC_64BIT_INTRINSICS)
@@ -672,7 +703,7 @@ BOOST_CHARCONV_CXX14_CONSTEXPR int high_bit(uint128 v) noexcept
// See: https://stackoverflow.com/questions/5386377/division-without-using
BOOST_CHARCONV_CXX14_CONSTEXPR void div_impl(uint128 lhs, uint128 rhs, uint128& quotient, uint128& remainder) noexcept
{
const uint128 one {0, 1};
constexpr uint128 one {0, 1};
if (rhs > lhs)
{