intx 0.7.1

Fixed

• Added support for bswap() of small unsigned types: uint8_t, uint16_t and uint32_t. Previously arguments where promoted to uint64_t what produced invalid results. #247

intx 0.7.0

Changed

• The int128.hpp and intx.hpp header files have been merged. Now the whole library is included in single intx/intx.hpp file. #242
• The addmod() implementation has optimized path for elliptic curve context. #206
• The implementation of operator== now explicitly performs XOR folding. #245

intx 0.6.0

Changed

• The internal representation of unsigned integers has been changed to be an array of 64-bit words. This provides types composed of any number of words (e.g. uint384). Previously only power-of-two numbers of words were allowed. This is big change that affects implementation of many operators. #212 #213
• Subtraction has been slightly rewritten to make it easier for compilers to optimize it. The performance now matches the addition. #189
• Multiplication API has been cleaned up by using std::is_constant_evaluated-like helpers internally. #195 #205
• Shift API has been changed to use uint64_t as shift amount on the fundamental API level. #202

intx 0.5.1

Changed

• The utility macros (e.g. INTX_UNREACHABLE()) have been redefined. #182
• Test and benchmarks improvements. #175

intx 0.5.0

Added

• Support for using intx dependency as a CMake subproject (e.g. by git submodules or FetchContent). #160
• Support for building intx exceptions handling disabled (-fno-exceptions) and without RTTI (-fno-rtti). #164

Changed

• Converted to header-only library. #155 #156
• Addition / subtraction optimizations. #115 #117 #130
• Division optimizations. #129 #131 #134 #141 #147 #171
• Exponentiation optimizations. #128 #146

Removed

• The unused builtins.h header has been deleted. #173

intx 0.4.0

Added

• Added the as_bytes() casting helper. [#106]

Changed

• The endian-specific API for converting intx types to/from bytes has been reworked. [#107]
• The clz() is now constexpr and produces correct answer for zero inputs. [#108]

intx 0.3.0

Added

• New addmod() and mulmod() procedures have been added for the uint256 type (#101).

Changed

• Pedantic compiler warnings have been fixed (#98).
• Performance of the division algorithm increased up to 40% when dividing 256-bit values by 128-bit and 64-bit ones (#99).

intx 0.2.0

v0.2.0

intx 0.2.0

intx 0.1.0

v0.1.0

intx 0.1.0