[Unreleased]

Added

• Added Decimal(const char*) and Int128(const char*) constructors for C-string initialization

Changed

• NIL

Deprecated

• NIL

Removed

• NIL

Fixed

• NIL

Security

• NIL

[0.2.0] - 2026-01-09

Changed

• Performance: Added DOUBLE_POWERS_OF_10 lookup table for Decimal::toDouble() conversion.

Fixed

• Fixed IEEE 754 binary representation artifacts in Decimal(float) and Decimal(double) constructors causing incorrect decimal displays (e.g., 273.15f showing as "273.149994", 380.4 showing as "380.399999999999977")
• Fixed cumulative floating-point rounding errors in Decimal::toDouble() conversion by replacing iterative division loop with single division operation

[0.1.1] - 2025-11-27

Changed

• Simplify Int128::operator<< by delegating to toString()
• Consolidated packaging tool detection in CMake configuration

Fixed

• Removed incorrect runtime dependencies from DEB/RPM packages

[0.1.0] - 2025-11-22 - Initial Release

Added

• Int128: Cross-platform 128-bit signed integer arithmetic
  • Native __int128 support on GCC/Clang for maximum performance
  • Hand-optimized implementation for MSVC using 64-bit operations
  • Full range: -2^127 to 2^127-1
  • Complete arithmetic operators (+, -, *, /, %, unary -)
  • Comparison operators (==, !=, <, <=, >, >=)
  • Type conversions (int32, int64, uint64, float, double, Decimal)
  • String parsing and formatting (fromString(), toString())
  • Bit manipulation (toLow(), toHigh(), toBits())
• Decimal: High-precision decimal arithmetic
  • 96-bit mantissa with 8-bit scale (0-28 decimal places)
  • Up to 28-29 significant digits
  • Exact decimal representation (no binary floating-point errors)
  • Complete arithmetic operators (+, -, *, /, unary -)
  • Comparison operators (==, !=, <, <=, >, >=)
  • Type conversions (int32, int64, uint64, float, double, Int128)
  • String parsing and formatting (fromString(), toString())
  • Mathematical operations (abs(), trunc(), floor(), ceil(), round())
  • State checking methods (scale(), decimalPlacesCount())
  • Cross-type arithmetic (Decimal ↔ Int128 interoperability)
• Documentation
  • README with feature overview
  • Detailed API documentation with Doxygen comments
  • Sample application demonstrating library usage
  • Build and installation instructions
• Testing & Benchmarking
  • Unit test suite
  • Performance benchmarks for all operations
  • Cross-compiler performance validation